煎药时用火应
A．文火
B．武火
C．先文后武
D．先武后文
E．以上均不是
参考答案：D
The minister said, "We are ready for discussions with any legal parties, but we'll never____
with criminals. " [ ]
A. negotiate
B. quarrel
C. argue
D. consult
斜坡防跑车装置安装位置：平坡头变坡点下文设（）。
A、常闭式联锁罐挡
B、常闭式单罐挡
