在下面列出的5种细胞中，对电离辐射敏感性最高的是（）
A.神经细胞
B.肌肉细胞
C.淋巴细胞
D.红细胞
E.肝细胞
参考答案：C
— Beautiful day, isn't it? Shall we go out for a picnic?
— _____! [ ]
A. Sounds great
B. Good luck
C. You are right
D. Have fun
— Hello. May I speak to Tom?
— I'm sorry. You ____ the wrong number. There's no one here by that name. [ ]
A. may have
B. must have
C. must have had
D. would have had
