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【单选题】
设有下列命题:级数 收敛的: (1)若 收敛,则 收敛 (2)若 收敛,则 收敛 (3)若 ,则 发散 (4)若 收敛,则 , 都收敛 则以上命题中正确的是A.
（1）（2）
B.
（2）（3）
C.
（3）（4）
D.
（1）（4）
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【简答题】听对话，选择正确答案。每段对话读两遍。 1. What does Lily often do in her free time? A. Goes shopping. B. Goes fishing. C. Goes swimming. 2. Which country does the boy plan to visit? A. America. B. Australia. C. Canada. ...
【简答题】听下面一段材料,回答第1-2题。 1. What does the woman like doing in her free time? A. She likes reading and listening to music. B. She likes reading and singing. C. She likes reading and playing basketball. 2. What...
【单选题】Scenario 6-1As part of an estate settlement Mary received $1 million. She decided to use the money to purchase a small business in Anywhere, USA. Her business operates in a perfectly competitive indus...
A.
-$150,000
B.
-$50,000
C.
-$25,000
D.
$25,000
【单选题】In her free time, Kathy likes to _______ at the mall with her friends.
A.
look out
B.
hang out
C.
let out
D.
fund out
【简答题】听下面一段文章，回答1-2题。 1. Where is Cindy studying now? A. In Nanjing. B. In Beijing. C. In Shanghai. 2. Why is Cindy unhappy these days? A. Because her parents are not staying with her. B. Because she doesn'...
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