疏水器是用来隔绝蒸汽,排除蒸汽管路中的凝液水,以充分利用蒸汽潜热。
参考答案:对
按照Java中的命名约定,方法名的起始字母一般都是小写,但是 【6】 方法例外。
Which of the following is true according to the speaker().
A. The bicycle rider didn’t stop to help the motorists.
B. The bicycle rider passed by several motorists.
C. Some drivers didn’t stop to assist the bicycle rider.