下列中不属于正确使用压力锅的操作方法的是()
A.使用之前,检查密封胶圈
B.使用之前,检查安全保障装置
C.使用匹配的限压阀
D.当压力锅稍冷却后强行打开锅
参考答案:D
32. Hardly ______ when the bus suddenly pulled away.
A.they had got to the bus stop
B.they got to the bus stop
C.did they get to the bus stop
D.had they got to the bus stop
着墨不匀的原因和解决办法是什么?