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【多选题】
下列药物中属于易燃、易爆、危险品的是
A.
硝酸戊四醇酯
B.
乙醇
C.
乙醚
D.
硝酸甘油
E.
5-氟尿嘧啶
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举一反三
【单选题】The Best Title of this passage is ______.
A.
Gypsies Want to Form. a Nation
B.
Are They a Nation
C.
EU Is Afraid of Their Growth
D.
They Are a Tribe
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【判断题】In America , it is necessary to make a beautiful wrapping for the gift and prepare a card with warm words in it.
A.
正确
B.
错误
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【简答题】Triplett于1898年调查了一个今天我们称作____的现象。
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【单选题】In the 3rd paragraph, the 'Guess Who' card is probably used to______.
A.
be a gift for relatives on Valentine's Day
B.
make jokes
C.
express happiness on Valentine's Day
D.
express love for a person one secretly admires
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【单选题】下列的叙述正确的是 [     ]
A.
甲烷分子中由于C原子发生了sp 3 轨道杂化而形成正四面体的立体结构
B.
甲醛分子中的化学键都是σ键
C.
二氧化碳分子呈直线形结构是因为C原子发生了sp 2 杂化
D.
氨气分子因氮原子发生了sp 3 轨道杂化，而形成正四面体的结构
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【单选题】Which of the following statements is true of the Hawaiian natives?
A.
They are the only native group without sovereignty.
B.
Their life span is 5 years shorter than average Americans.
C.
Sixty percent of them are homeless or unemployed.
D.
Their life is worse than that of other ethnic groups in Hawaii.
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相关题目：
【单选题】The Best Title of this passage is ______.
A.
Gypsies Want to Form. a Nation
B.
Are They a Nation
C.
EU Is Afraid of Their Growth
D.
They Are a Tribe
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【判断题】In America , it is necessary to make a beautiful wrapping for the gift and prepare a card with warm words in it.
A.
正确
B.
错误
查看完整题目与答案
【简答题】Triplett于1898年调查了一个今天我们称作____的现象。
查看完整题目与答案
【单选题】In the 3rd paragraph, the 'Guess Who' card is probably used to______.
A.
be a gift for relatives on Valentine's Day
B.
make jokes
C.
express happiness on Valentine's Day
D.
express love for a person one secretly admires
查看完整题目与答案
【单选题】下列的叙述正确的是 [     ]
A.
甲烷分子中由于C原子发生了sp 3 轨道杂化而形成正四面体的立体结构
B.
甲醛分子中的化学键都是σ键
C.
二氧化碳分子呈直线形结构是因为C原子发生了sp 2 杂化
D.
氨气分子因氮原子发生了sp 3 轨道杂化，而形成正四面体的结构
查看完整题目与答案
【简答题】Credit card rewards programs have traditionally featured airline miles, gift certificates, and cash back for customers who spend enough on their cards. But recently, credit card companies have started...
查看完整题目与答案
【简答题】单词拼写（共10分） 76．The day when the Maori signed an agreement with the settlers is still c       as a national holiday. 77．Susan decided to buy the d        necklace which cost a lot of money 78．Finally, t...
查看完整题目与答案
【单选题】Which of the following statements is true of the Hawaiian natives?
A.
They are the only native group without sovereignty.
B.
Their life span is 5 years shorter than average Americans.
C.
Sixty percent of them are homeless or unemployed.
D.
Their life is worse than that of other ethnic groups in Hawaii.
查看完整题目与答案