危险物品是指()等能够危及人身安全和财产安全的物品。
A.易燃易爆品
B.危险化学品
C.放射性物品
D.易碎品
参考答案:A, B, C
–English is becoming so important.
–It’s true. Many university classes are taught in English _____ the native language is not English.
A. as if
B. what if
C. as long as
D. even though
饮食中缺硒可能引起的地方病有()
A.克山病,克汀病
B.大骨节病,黑脚病
C.克山病,痛痛病
D.黑脚病,水俣病
E.克山病,大骨节病