调节递纸牙垫通常是以()为基准。
A、输纸台
B、滚筒叼牙的牙垫高度
C、前规高度
参考答案:B
—Do you know ________?
—Yes, I do. She went there by bus.
A.how Kate came here
B.Where Kate came from
C.when Kate come here
D.Why Kate didn’t come here
“五量”是指()、()、()、()、()。