有机氮类(氨基甲酸酯)中毒症候群是()
A.消化道症状
B.毒蕈碱样症状
C.烟碱样症状
D.中枢神经系统症状
E.皮肤黏膜刺激症状
参考答案:B, C, D, E
I was supposed to _______ all my shopping by now, but I still have a great many to buy.
A.to have finished
B.to finish
C.to be finishing
D.to have been finished
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