安装柴油机汽缸盖时,未按()或规定扭矩旋紧缸盖螺栓,容易使缸体产生结合平面翘曲变形。
A.扭紧圈数
B.扭紧顺序
C.扭紧方向
D.扭紧高度
参考答案:B
So fast ________ that I could not catch up with them.
A.did they run
B.they had run
C.they ran
D.had they run
明清台湾画家水墨写意画以什么体裁最常见()
A.花鸟
B.兰竹
C.人物
D.山水