A．appearB．demonstrateC．indicateD．display
A. appear
B. demonstrate
C. indicate
D. display
查看答案
A．eliminatingB．regulatingC．isolatingD．stimulating
A. eliminating
B. regulating
C. isolating
D. stimulating
According to President F. D. Roosevelt, the funds for basic research in public colleges and universities would he ______.
A. endowed by state government
B. provided by federal government
C. solved by universities themselves
D. donated by private companies or rich people
A．relatedB．reportedC．requestedD．repeated
A. related
B. reported
C. requested
D. repeated
生物膜像分子筛一样对大分子不能通过，对小分子能以较高的速度通过。()
A. 正确
B. 错误
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