对于供电线路长、电网容量有限，且启动转矩较高或要求过载能力较大的场合，宜选采用高压电动机。
参考答案：对
气阴两亏恶阻的辨证要点是（）
A.妊娠初期，呕吐不食，或呕吐清涎
B.妊娠初期，恶心欲吐，晨起尤甚
C.妊娠初期，呕吐酸水或苦水
D.妊娠初期，呕吐痰涎
E.以上都不是
—I don't know why Denise started crying when I mentioned the wedding.
—It ______ what you said about her brother. Or, perhaps she is just nervous. [ ]
A. should have been
B. couldn't have been
C. could have been
D. must have been
