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问题
单项选择题
孕妇做产前血清学筛查最佳时间是:()
A.孕10—12周
B.孕16—20周
C.孕20—24周
D.孕26—28周
答案
参考答案:
B
填空题
用所给单词填空。
wind Flowers October supper April
1. I eat
at seven o'clock.
2.
bloom.
3. National Day is on
first.
4.
is the fourth month of one year.
5. The
is blowing the tree's leaves
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名词解释
心理学
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