问题
选择题
He insisted that he ________ in good health and _______ to work there.
A．was, be sent
B．is, is sent
C．be, was sent
D．be, send
答案
答案：A
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He insisted that he ________ in good health and _______ to work there.
A．was, be sent
B．is, is sent
C．be, was sent
D．be, send
答案：A
2NH3(g) ΔH＜0
CO(g) ＋ H2O(g) ΔH＞0