His public _______ is very different from the real person.
A. picture
B. portrait
C. image
D. illustration
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People who are following norms behave________ in most situations.
A. appropriate
B. appropriately
C. inappropriate
D. acceptable
The committee _______of ten members.
A. include
B. consist
C. comprise
D. compose
People often choose to________ to another country for economic and political reasons.
A. immigrate
B. immigrant
C. immigration
D. emigrate
植物秸杆中最易被微生物分解的大分子
A. 木质素
B. 半纤维素
C. 几丁质
D. 淀粉