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【多选题】
可作为基因载体是因为A.
含有复制子结构，能自主复制
B.
可插入外源 DNA
C.
能和染色体交换 DNA 序列
D.
不需要借助宿主细胞内功能组分
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举一反三
【单选题】( )2. He often becomes angry these days ____ his noisy children. A. because B. for C. about D. because of
A.
because
B.
for
C.
about
D.
because of
【单选题】A 5.2.2 Listen to the dialogue and choose the best answer to each of the following questions you will hear. 1. A. Because he wants to open a bank account. B. Because he wants to withdraw a large sum o...
A.
Because he wants to open a bank account.
B.
Because he wants to withdraw a large sum of money.
C.
Because he wants to overdraw on his account.
D.
Because he has some problems with his account at the moment.
【单选题】Task 2 Paul is talking with Linda about her start-up on phone. Listen to the conversation and choose the best answer to each question you hear. 2.
A.
Because he is unable to speak.
B.
Because he is retired.
C.
Because he is not involved in the company’s daily operations.
D.
Because he is cautious in giving advice on the company’s daily operations.
【简答题】听对话，选答案。 ( ) 1. A. None. B. Two. C. Four. ( ) 2. A. Because she overslept. B. Because she was ill. C. Because she worked as a volunteer. ( ) 3. A. On foot. B. By bike. C. By bus. ( ) 4...
【单选题】(2)Why did the shop owner sell Bobby flowers at a low price?A．Because someone told him to do so．B．Because he was always willing to help others．C．Because Bobby was like his son．D．Because he saw himself...
A.
Because someone told him to do so．
B.
Because he was always willing to help others．
C.
Because Bobby was like his son．
D.
Because he saw himself years ago in Bobby．
【单选题】Why does Gupta have the chance to work with Nathaniel Anthony Ayers? a. Because they both work in Juilliard School. b. Because Gupta and Ayers live in the same community c. Because Gupta is enthusiast...
A.
Because they both work in Juilliard School.
B.
Because Gupta and Ayers live in the same community
C.
Because Gupta is enthusiastic about music and neurobiology
D.
Because they belong to the same organization
【简答题】简述骨盆外测量常用径线的起止点和正常值。
【简答题】Listen to the conversations and write down the reasons why an apology is made in each case. 1. Because he . 2. Because she was late for work. . 3. Because he about quitting. 4. Because he .
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