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【多选题】
在“要么p要么q”中,逻辑常逻辑变项依次是:A.
要么p
B.
要么q
C.
要么…要么…
D.
p、q
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【单选题】It is revealed by research that it is more beneficial to kids if their parents watch TV programs with them than having their viewing time limited.
A.
Y
B.
N
C.
NG
【单选题】The research is so designed that once _____ nothing can be done to change it.
A.
begins
B.
having begun
C.
beginning
D.
begun
【单选题】Cancer Research Campaign is most likely a ______.
A.
medical journal
B.
research institute
C.
private company
D.
governmental agency
【单选题】The research is so designed that, once _______, nothing can be done to change it.
A.
begins
B.
having begun
C.
begun
D.
Beginning
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