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【单选题】
在“以,泉涓涓而始流”句中,“而”的词性是A.
介词
B.
连词
C.
副词
D.
动词
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反馈参考答案：
举一反三
【单选题】喝汤时不宜发出声响;若汤热,正确的做法是:
A.
可轻轻用嘴吹,把汤吹凉了再喝
B.
可试温但不宜用嘴吹,更不宜用汤匙拨弄
C.
不宜用嘴吹,但可用汤匙搅拌
D.
用嘴吹,然后再用汤匙拨弄
【单选题】Which of the following is an accurate statement about the pull of the sun on the earth?
A.
It determines the time of high tide.
B.
It is about twice the pull of the moon.
C.
It determines the time of low tide.
D.
It is about half the pull of the moon.
【简答题】桔梗横切面可见（ ）
【单选题】I’ll get my bad teeth_______ tomorrow.
A.
pull out
B.
to pull out
C.
pulled out
D.
pulling out
【简答题】把汉字和含有该字拼音的词连起来。 Join the character and the corresponding pinyin of the word that contains the character.
【简答题】把汉字和含有该字拼音的词连起来。 Join the character and the corresponding pinyin of the word that contains the character.
【单选题】What does the experiment lnentioned in paragraph 4 prove? 查看材料
A.
There are more enzymes in decaf drinkers' urine sample.
B.
There are more melatonin concentrations in caffeine drinkers' urine sample.
C.
Decaf drinkers produce less melatonin.
D.
Caffeine drinkers produce less sleep hormone that decaf drinkers.
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