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A．They break down bone tissue.
B．They defend the bone against viruses.
C．They connect the bone to muscle tissue.
D．They prevent oxygen from entering the bone.
答案
更多“A．They break down bone tissue.B．They defend the bone against viruses.C．They connect th”相关的问题
第1题
What is one advantage of solar drip irrigation systems mentioned in the passage？
A.They are more reliable.
B.They have initial advantage.
C.They dont break down from time to time.
D.They are more economical over time.
第2题
听力原文： Before the Indians had horses, they used a "surround hunt," or drive, to get game. The Hopi, for example, hunted antelope in this way. They chose a place partly fenced in by hills and with trees nearby. There they built a corral of strong trees trunks with one opening. From this, long wings let out, fenced with brush for some distances. Men stood along these wings to scare the antelope so that they would not try to leap the brush but would gallop down the open space into the corral. When a herd was nearby, the boys of the village were sent to round them up. They got behind the animals, and made a fire to frighten them. Then the boys closed in around them howling like wolves to make them run towards the corral. When the antelope had entered it, the opening was closed with brash. Good marksmen could then easily shoot them as they milled around.
(26)
A．They are able to jump high barriers.
B．They are afraid of wolves.
C．They are able to break through fences.
D．They live in large groups.
第3题
Why do learner drivers have to keep their present jobs？
A．They don' t want their present bosses to know what they' re doing．
B．They want to earn money from both jobs．
C．They cannot earn money as taxi drivers yet．
D．They look forward to further promotion．
第4题
What problems might children have when their parents break up？
A．They are not much loved any more.
B．They have nobody to depend on.
C．They have no stable living environment.
D．They blame themselves for the breakup.
第5题
The people in the office suddenly started working because
A．they saw a stranger in the office
B．their morning break was ended
C．no one wanted to talk to Made
D．the boss was about to arrive
第6题
The people in the office suddenly started working because ______.
A．they saw a stranger in the office
B．their morning break was ended
C．no one wanted to talk to Marie
D．the boss was about to arrive
第7题
The people in the office suddenly started working because________.
A．they saw a stranger in the office
B．their morning break was ended
C．no one wanted to talk to Marie
D．the boss was about to arrive
第8题
What are the audience going to do next？
A．They will be listening to Ms. Lorraine Brennan's speech.
B．They will take a break for 10 minutes.
C．They will read some printed materials.
D．They will study computer software.
第9题
In what way will the attendants be classified？
A．They'll be divided into different groups after an oral test.
B．They'll be classified according to their entering sequence.
C．Those who break the limitation of 2 participants will be sent to advanced level class.
D．Staff who make better preparation will attend advanced class.
第10题
The people in the office suddenly started working because______.
A．they saw a stranger in the office
B．their morning break was ended
C．no one wanted to talk to Marie
D．the boss was about to arrive
