题目内容
（请给出正确答案）
[单选题]
电动机的工作制包括有S1、S2、……S8八种，天车上只用（）一种。
A.S1
B.S3
C.S4
答案
查看答案
重要提示：请勿将账号共享给其他人使用，违者账号将被封禁！
查看《购买须知》>>>
请输入或粘贴题目内容
搜题
拍照、语音搜题，请扫码下载APP
题目内容
（请给出正确答案）
A.S1
B.S3
C.S4
答案
更多“电动机的工作制包括有S1、S2、……S8八种，天车上只用（）一种。”相关的问题
第3题
第7题
某机床电动机由电源开关S1，过载保护开关S2和安全开关S3控制。三个开关同时闭合时，电动机转动；任一开关断开时，电动机停转。试用逻辑门实现，画出控制电路。
第8题
Finding the resources to meet this demand in a 【S2】________, sustainable way is the cornerstone of our nation’s energy security, and will be one of the major 【S3】________ of the 21st century. Alternative forms of energy --- bio-fuels, wind and solar, to name a few --- are 【S4】________ being funded and developed, and will play a growing 【S5】________ in the world’s energy supply. But experts say that, even when 【S6】________, alternative energy sources will likely meet only about 30% of the world’s energy needs by 2050.
For example, even with 【S7】________ investments, such as the $93 million for wind energy development 【S8】________ in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels 【S9】________ only about 1% of the market today. Energy and sustainability experts say the answer to our future energy needs will likely come from a lot of 【S10】________ --- both traditional and alternative.
A stable B solutions C significant D role E progress
F marvelous G included H growth I exactly J consist
K comprise L competitions M combined N challenges O certainly
【S1】
【S2】
【S3】
【S4】
【S5】
【S6】
【S7】
【S8】
【S9】
【S10】
请帮忙给出每个问题的正确答案和分析，谢谢！
第9题
It was very fine while I got up early last Sunday morning. 【S1】______
So I decided to go for a walk and took some photos in the 【S2】______
beautiful country. After breakfast, I carried my camera with 【S3】______
me and set off. Everything went smooth. I enjoyed my trip 【S4】______
so much that I didn't realize the weather had been turned 【S5】______
bad. I began to run and it was too late. I was caught 【S6】______
by the rain and was wet through. I kept on running until 【S7】______
I get to a bus stop. I stood there waiting a long time for the bus 【S8】______
shivering (颤抖) with cold. Shortly before I got home, I 【S9】______
had high fever, which made me stay in bed for a whole week! 【S10】______
【S1】
第10题
What is the best health and insurance plan for me？ 【S1】______
Because choosing a health plan can be a confusing experience. 【S2】______
Although there is no one "best" plan, there are some plans that which 【S3】______
will be better than others for you and for your family's health 【S4】______
needs. We will try to guide with you in simple terms. However, 【S5】______
if rather than just giving you answers, the best thing 【S6】______
what we can do is to make sure you are equipped with the right 【S7】______
questions.
There are three major things to consider, of each with their own 【S8】______
unique set of questions. By considering about the questions 【S9】______
thoroughly, you will arrive at the right plan for you and your family. 【S10】______
&8226; How affordable is the cost of health care
&8226; Do the included services match at my needs (access of care) 【S11】______
&8226; Have people had good results when they covered by a specific 【S12】______
plan (quality of care)
【S1】______
第11题
Research by Florida and by demographer Gary Gates of the Urban 【S1】______
Institute, for instance, he finds that centers of tech-based business 【S2】______
growth tend to have the highest concentrations of gays while 【S3】______
in major areas with few gay couples are slow to-no-growth areas. 【S4】______
Similarly, with women attending in college in higher numbers and 【S5】______
they closing the gap in almost every advanced degree, senior 【S6】______
management is committing organizational suicide by excluding
women from the corporate meritocracy. It's a virtuous cycle: Diversity 【S7】______
is good for creativity and creativity encourages with more diversity. 【S8】______
Both are good for the profit-and-loss statement.
Now, I'm no Pollyanna. There are many problems in the workplace.
Just ask the women professionals at Morgan Stanley (MWD). And
race remains as a powerful barrier to opportunity in Corporate America. 【S9】______
Still, in the workplace--with its incentives and rewards--is why, when 【S10】______
it comes to the great social, political, and economic issues of the past 【S11】______
30 years, we're all learning to find on common ground. Our standard of 【S12】______
living depends on it.
【S1】______
