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【单选题】
铜原子的价层电子排布式为 A.3d 9 4s 2 B.3d 10 4s 1 C.3d 6 4s 2 D.3s 1 3d 10A.
B.
C.
D.
D
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【简答题】根据句意及首字母提示，补全单词。 1. He Pingguo is in Class Seven, and Li Hong is in Class Seven, too. They are in the s_____ class. 2. —How do you spell it? —E-d_____ G, egg. 3. Bai Lixi is from Wuhan. Her E_____ nam...
【多选题】下列信号中哪些属于遇险信号？Ⅱ、Ⅲ、
A.
由无线电示位标发出的信号
B.
两臂侧伸，缓慢而重复地上下摆动
C.
以雾号器具连续发声
D.
每隔 1 分钟鸣放爆炸信号一次
【简答题】阅读短文，回答问题。 Jim asks his friend Li Lei, 'How many days are there in a week?' 'Why? Seven of course. Sunday, Monday, Tuesday, Wednesday, Thursday, Friday and Saturday.' Li Lei answers. 'Well, Li Lei, ca...
【单选题】--- What class are you in? --- I’m in ________________, Miss Li’s class.
A.
class three grade seven
B.
Class three Grade seven
C.
Class Three Grade Seven
D.
class Three grade Seven
【单选题】How long will Li Hua stay in the States?
A.
Seven months.
B.
Half a year.
C.
Fifteen weeks.
【简答题】大学生投身崇德向善的道德实践,要弘扬真善美、贬斥假恶丑,做社会主义道德的示范者和引领者,促成 ( ) 的社会风尚。A. 知荣辱 B. 讲正气 C. 作奉献 D. 促和谐
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