小儿急性偏瘫多由（）和（）所致。
参考答案：脑梗死；短暂性脑缺血发作
Timmy was only 11 years old, but he is already 1.7 meters tall. He is too tall __________ his age, I think.
A．at
B．in
C．about
D．for
面试中主试人员与被试人员沟通的基础是（）
A.倾听
B.观察
C.提问
D.评价
