儿科高血压最常见的原因是（）
A.内分泌疾病
B.颅脑病变
C.中毒
D.激素应用
E.肾脏疾病
参考答案：E
货币作为独立的价值形式进行价值单方面转移的职能是()。
A.价值尺度
B.流通手段
C.贮藏手段
D.支付手段
I was not quite sure __________.
A．what is she looking for
B．why she came late for school
C．how did she deal with the problem
D．if she has arrived
