题目内容

餐饮业洗手液的余氯浓度一般应控制在()ppm左右。

A. 30
B. 50
C. 80

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无论发生次数还是人数,在我国占食物中毒总数第一位的是( )。

A. 细菌性食物中毒
B. 有毒动、植物食物中毒
C. 化学性食物中毒
D. 霉变食物引起的食物中毒

She______be ill because I saw her playing tennis just now.

A. can't
B. couldn't
C. mustn't
D. may not

(As soon as) (we've finished) supper, we'll all (go to downtown) to see (the) Sound of music.

As soon as
B. we've finished
C. go to downtown
D. the

出现食物中毒症状或者误食化学品时,最先采取的急救措施是( )。

A. 催吐
B. 吃止泻药物
C. 向卫生防疫部门报告

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