妊娠中、后期妇女可能出现的生理性改变有
A．血沉减慢
B．血小板计数降低
C．白细胞计数降低
D．尿HCG定性阴性
E．红细胞计数降低
参考答案：E
用所给动词的适当形式填空。
1. Look, Mike and Tom ______ (talk) with our teacher.
2. Could you please ______ (help) me with the housework?
3. Please ______ (put) the box into your room.
4. He often ______ (help) me ______ (study) English.
5. We can't talk here. Look at the sign "No ______ (talk)!"
下列风险中，可由不同的资产组合予以降低或消除的是（）。
A.经营风险
B.国家经济政策的变化风险
C.税制改革风险
D.政治因素风险
