下面属于水基型胶黏剂的是()
A、白乳胶
B、玻璃胶
C、108胶
D、PU胶
参考答案:A, C
They waited at the bus stop and about five minutes later the bus they wanted along. [ ]
A. coming
B. came
C. to come
D. had come
English is understood all over the world ______ Turkish is spoken by only a few people outside Turkey itself.
A.while
B.as
C.unless
D.until