氯丙嗪不用于：
A．躁狂抑郁症的躁狂症状B．顽固性呃逆C．低温麻醉D．人工冬眠E．晕车呕吐
参考答案：E
合金元素可以使钢材获得哪些特殊的性能？
It is said that science has become too complex to acknowledge the existence of universal troths.()
A. address
B. declare
C. affirm
D. perceive
