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【简答题】
锌、碘是人体必须的微量元素，在国际上锌被誉为“生命之花”、碘被誉为“智力元素”．某品牌食盐使用说明的部分内容如右图所示． 请回答下列问题： （1）人体缺锌会导致______等疾病． （2）葡萄糖酸锌的化学式为C 12 H 22 O 14 Zn（相对分子质量为455）．计算其中锌的质量分数为______． （3）1kg该品牌食盐中葡萄糖酸锌的含量为______g．
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【简答题】根据句意和首字母完成单词。 1. I think you'd better take your father's a______. 2. We often take four c______ in the morning from Monday to Friday. 3. Last Sunday he gave me a pen as a g_______ for my birthday. 4. ...
【单选题】It's very warm here in the room. You'd better ______ your coat. [ ]
A.
take in
B.
take away
C.
take out
D.
take off
【简答题】根据首字母及汉语释义填写单词。 1. It will be rainy, you'd better take an u_______ (雨伞) with you. 2. Our teacher is still c_______ (检查) our homework. 3. Many p_______ (乘客) got hurt in this accident. 4. You are so fu...
【简答题】根据句意和首字母完成单词。 1. I think you'd better take your father's a_________. 2. We often take four c_________ in the morning from Monday to Friday. 3. Last Sunday he gave me a pen as a g_________ for my birth...
【单选题】Daming , you'd better ________ your homework now.
A.
t o finish
B.
finish
C.
finishes
D.
finishing
【简答题】根据句意和首字母完成单词。 1. I think you'd better take your father's a_____. 2. We often take four c_____ in the morning from Monday to Friday. 3. Last Sunday he gave me a pen as a g_____ for my birthday. 4. We o...
【单选题】It's cold outside. You'd better _____ your coat and scarf. [ ]
A.
work out
B.
put out
C.
have on
D.
put on
【单选题】Paris is very big. Yo u'd better ______ the city by subway. [ ]
A.
get up
B.
get around
C.
get on
D.
get off
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