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【判断题】
三萜苷具有苦味而辛辣,其粉末对黏膜有强烈刺激性,吸入鼻腔常引起喷嚏。
A.
正确
B.
错误
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【单选题】Face Masks May not Protect from Super-flu If a super-flu strikes, face masks may not protect you. Whether widespread use of masks will help, or harm, during the next worldwide flu outbreak is a questi...
A.
Reasons for Excluding Masks from the Self-protection List
B.
Effort to Stop Flu Spreading
C.
When to Use Face Masks
D.
Guidelines on Mask Use
E.
Warnings from the CDC
F.
Danger of Infection through Germy Hands and Masks Paragraph 2 ______
相关题目：
【单选题】Face Masks May not Protect from Super-flu If a super-flu strikes, face masks may not protect you. Whether widespread use of masks will help, or harm, during the next worldwide flu outbreak is a questi...
A.
Reasons for Excluding Masks from the Self-protection List
B.
Effort to Stop Flu Spreading
C.
When to Use Face Masks
D.
Guidelines on Mask Use
E.
Warnings from the CDC
F.
Danger of Infection through Germy Hands and Masks Paragraph 2 ______
参考解析：
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