21-三体综合症的临床特点是
A．皮肤、虹膜色泽变浅B．发热、咳嗽C．特殊面容D．腹泻、呕吐E．皮疹
参考答案：C
公司对公开发行股票所募集资金，必须按照招股说明书所列资金用途使用。改变招股说明书所列资金用途，必须经董事会作出决议。
—I sent him the dictionary by mail this morning.
—You ______ that, for he's coming tomorrow morning.[ ]
A. needn't have done
B. didn't have to do
C. needn't do
D. mustn't do
