气压盘式车轮制动器的控制机构主要包括（）。
A、制动气室
B、制动摇臂
C、带有间隙调整功能的制动推杆
D、制动盘
参考答案：A, B, C
—______is my book.______ isn't my book.
— her book.[ ]
A. This; This; That's
B. This; That; That's
C. That; This; That's
D. That; That; This's
普通混凝土的用水量增大，混凝土的干缩增大
