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【单选题】
色甘酸钠预防哮喘发作的机制是A.
直接松弛支气管平滑肌
B.
有较强的抗炎作用
C.
有较强抗过敏作用
D.
稳定肥大细胞膜，抑制过敏介质释放
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举一反三
【单选题】According to the text, which statement of cancer is correct?
A.
Cures of cancer will be available by the end of the decade.
B.
Cancers can never be prevented.
C.
The cure possibility of cancer currently is 50%.
D.
People can prevent cancers one day.
【单选题】：逻辑学家说：如果2+2=5，则地球是方的。以下哪项和逻辑学家所说的同真（ ）
A.
如果地球是方的，则2+2=5
B.
如果地球是圆的，则2+2≠5
C.
2+2≠5或者地球是方的
D.
2+2=5或者地球是方的
【单选题】We are happy to be able to inform. you that the parts you ordered are now ()and available for picking up at the above address.
A.
in stock
B.
on stock
C.
on hand
D.
at stock
【单选题】which of the following statements is NOT true?
A.
Modern medicines are now available all over the world．
B.
Many big and modern hospitals are expensive．
C.
Traditional medicines are neither mysterious nor magical．
D.
Humans have used some kinds of medicines since earliest days．
【简答题】供应链管理的基本思想是什么？
【简答题】供应链管理的基本思想是什么？
【单选题】All the statements about the messages posted on Cancer Chat are true EXCEPT
A.
they are available to all visitors.
B.
their writers get paid for them.
C.
they concern not just treatments and side effects.
D.
they are also an emotional outlet for their writers.
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