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问题 单项选择题

最可能引起胎儿发生缺血、缺氧的是（）。

A.脐带绕颈1周

B.母亲有轻度贫血

C.母亲在孕后期有感冒史

D.母亲孕期严重低血压

E.母亲有糖尿病

答案

参考答案：D

补全对话，情景问答
给下列的问句选择合适的答语。
( ) 1. What do they eat?
( ) 2. Where does a bird live?
( ) 3. Where is the lion?
( ) 4. Does an elephant have a trunk?
( ) 5. What has fur?
( ) 6. What is it?
( ) 7. What animal can swim?		A. The cat has fur.
B. The lion is at the zoo.
C. They eat meat.
D. A bird lives in a tree.
E. Yes, it does.
F. A fish can swim.
G. It's a cow.
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单项选择题

下面哪一位皇帝是历史上第一位信仰基督教的皇帝？（）

A、希特勒

B、拿破仑

C、亚历山大大帝

D、君士坦丁大地
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