在易燃易爆化学危险品的生产现场,禁止穿()以防止产生静电
A、S棉织物品
B、麻织物品
C、丝织物品
D、药纤织品
参考答案:D
Even though it is at least 20 years _____ we got to know, I can’t forget the scene_____ we were introduced to each other.
A.that , where
B.when, in which
C.since , when
D.since, where
渊源学