(单选)Testing students by examinations has long been regarded as a reliable way to ( )students’ ability.
A. assess
B. indicate
C. decrease
D. alter
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(单选)This is our country's domestic affair; we do not expect other countries to( ) .
A. undermine
B. interfere
C. comparable
D. depress
(单选)The treatment is ( ) because it may have serious side effects.
A. decrease
B. compromise
C. convention
D. controversial
(单选)Wearing a coat and tie is an accepted ( ) on such an occasion.
A. convention
B. conventions
C. conventional
D. conventionally
51单片机的串行口扩展并行I/O口时,串行接口工作方式选择?
A. 方式0
B. 方式1
C. 方式2
D. 方式3