PASSIM卷烟机切割系统中的()起到在烟条切割中的支撑作用。
A.刀盘
B.喇叭嘴
C.拔烟轮
D.刃磨装置
参考答案:B
I spent five hours_____________ the book__________ I paid 10 dollars.
A.reading; that
B.to read; for that
C.read; which
D.reading; for which
T-6型机场消防车上装有()只干粉罐.
(A)1
(B)2
(C)3
(D)4