螺母要上满扣,一般螺栓长出螺母的扣数可在()扣范围内
A.1~2
B.2~3
C.3~4
参考答案:B
New ideas sometimes have to wait for years before _____ .
A.fully accepted
B.having fully accepted
C.fully accepting
D.being fully accepted
社会主义道德的核心是______。