三相电动机运行时各相电流差不应大于()。
A.2
B.3
C.5
D.10
参考答案:C
Which of the following statements represents information at a specific point in time()
A. The income statement.
B. The balance sheet.
C. The statement of cash flows.
妊娠恶阻的治疗原则是
A.健脾益气,降逆止呕B.调气和中,降逆止呕C.疏肝解郁,降逆止呕D.活血化淤,降逆止呕E.滋补肾阴,降逆止呕