如果有同学或好朋友吃了一些东西以后,发生昏厥、呕吐或是抽搐等不适症状,我们可以拨打120急救电话。()
参考答案:对
— You must be looking forward to your trip back to Sydney.
— Yes. I ______ wait any longer.[ ]
A. can't
B. mustn't
C. needn't
D. shouldn't
现代教学策略具有的特点是()
A.指向性
B.灵活性
C.多样性
D.创造性