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【多选题】
剧毒化学品是指具有非常剧烈毒性危害的化学品，包括（）。A.
人工合成的化学品及其混合物（含农药）
B.
天然毒素
C.
烟花爆竹
D.
民爆物品
E.
民用天燃气
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皮皮学刷刷变学霸
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【单选题】听力原文：W：I hear that you work part—time at a supermarket．What do you do there? M：I work in the produce section．I also stock shelves．Sometimes when it really gets busy，I help at the check out counter． Q：...
A.
He works at the meat counter.
B.
He delivers groceries to customers.
C.
He serves as a cashier.
D.
He stocks shelves.
【单选题】The reason was _____ I was busy with my work at that time.
A.
why
B.
because of
C.
that
D.
what
【简答题】I first met Lisa three months ago .She _______(work)
at a store factory at that time.
【简答题】Revise the underlined part to achieve parallelism: Leonardo da Vince was known both as an inventor and painting pictures . Leonardo da Vince was known both as an inventor and _____ ________.
【单选题】The tone of the author to Leonardo da Vince is______.
A.
critical
B.
neutral
C.
curious
D.
praising
相关题目：
【单选题】The reason was _____ I was busy with my work at that time.
A.
why
B.
because of
C.
that
D.
what