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【单选题】
下列哪项不是卫生部规定的卫生标准A.
每1ml饮用水细菌总数不得超过100个
B.
每100ml汽水大肠菌群不得超过5个
C.
每1000ml饮用水大肠菌群不得超过3个
D.
每1ml饮料细菌总数不得超过100个
E.
每100ml果汁大肠菌群不得超过100个
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举一反三
【单选题】Exercise always helps ______ me of tension and stress.
A.
stress
B.
relieve
C.
fill out
【单选题】Andy always says “________” to his parents when he goes to school every day.
A.
Good morning
B.
Good afternoon
C.
Good evening
D.
Goodbye
【单选题】紫菜属于蔬菜的类别是...................................................( )
A.
藻类蔬菜
B.
地衣类蔬菜
C.
食用菌类蔬菜
D.
叶菜类蔬菜
【简答题】Life are always full of stress (压力) these days. How do you usually deal with (处理) your stress? Do you know doing housework is helpful in dealing with stress? In fact, doing something like washing dirt...
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