问题
选择题
You're too tired. You _______ have a good rest. [ ]
A. should
B. can
C. may
D. shouldn't
答案
A
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You're too tired. You _______ have a good rest. [ ]
A. should
B. can
C. may
D. shouldn't
A
2Z(g)； ΔH＜0，达到平衡时，下列说法正确的是