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【单选题】
下列有害金属元素中毒可引起水俣病的是()A.
铅
B.
甲基汞
C.
砷
D.
镉
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反馈参考答案：
举一反三
【简答题】三、阅读理解。 In the morning Mr . Smith comes into the garden at the back of his house . He sees so much snow in the garden . Mr . Smith wants to take his car out , so he asks a man to clean the road from h...
【单选题】Please wait ________the office. Don’t come in until you are called
A.
in
B.
into
C.
inside
D.
outside
【简答题】根据短文内容,选择最佳答案。 (答案之间不需要空格,记得大写!) In the morning Mr Smith comes into the garden at the back of his house . He sees so much snow in the garden. Mr Smith wants to take his car out , so he asks a man to c...
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