第1题
Lead(IV)is a powerful oxidizing agent. What can be said about the reducing ability of lead(II )?
第3题
What is the "lead" in a pencil made of.'?
A.Diamond.
B.Carbon.
C.Lead.
D.Graphite.
第5题
Poor diets can lead to such diseases as rickets and scurvy.
A.Right
B.Wrong
C.Not mentioned
第6题
The ability to lead is not necessary to everyone.
A.正确
B.错误
第7题
Which of the following statements is tree?
A.Deficits may lead government to reduce interest rate.
B.Deficits may lead government to raise expenditure on imports.
C.Surplus may lead government to stimulate imports from foreign counties.
D.Surplus may lead government to reduce expenditure on imports.
第8题
第9题
Audrey Hepburn made a name of herself for playing the lead role in My Fair Lady.()
第10题
She ______ high levels of lead in her drinking water.
A.perceived
B.spotted
C.detected
D.discerned
第11题
According to the passage, a barter economy can lead to______.
A.rapid speed of transaction
B.misunderstandings
C.inflation
D.difficulties for the traders