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【简答题】
DNA变性是指(    ) A.多核苷酸链解聚  B.互补碱基间氢键断裂  C.分子中磷酸二酯键断裂  D.碱基与脱氧核糖间糖苷键断裂  E.DNA分子由超螺旋转变为双螺旋
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举一反三
【单选题】Mr. Brown said that his car needed
A.
to be repaired
B.
being repaired
C.
be repairing
D.
to repair
【判断题】防火墙是万能的,能够抵御任何的攻击
A.
正确
B.
错误
【多选题】下面属于封闭式提问的内容是?
A.
封闭式提问像对错判断或多项选择题。可以明确某些问题。封闭式提问一般在明确问题时使用,用来澄清事实,获取重点,缩小讨论范围
B.
您的爱车有发生过碰撞的事故吗?
C.
您的爱车以前有没有遇到过这样的情况呢?
【单选题】Mr. Brown said that he would ___ us to have dinner together this weekend.
A.
call on
B.
call off
C.
call for
D.
call up
【单选题】Mr. Brown said that he did not want to _____ any further responsibilities.
A.
take on
B.
put up
C.
get on
D.
look up
【简答题】Mr. Brown said that he is__________(confidence) that the company will improve its performance on a recovering economic environment.
【单选题】属于封闭式提问的是( )。
A.
“您好,您觉得这款产品怎么样?”
B.
“您是否购买过我公司的产品?”
C.
“您对我公司有何意见?”
D.
“您希望我公司还提供哪些服务?”
【单选题】下列属于封闭式提问的问题是
A.
经过这两天的治疗,您今天感觉好多了吧
B.
您是河北人吧
C.
您为什么不愿意选择手术治疗呢
D.
您是在哪里做的检查检查结果如何
E.
您愿意和我谈谈自己手术后的感受吗
【单选题】Mr. Brown said that he did not want to _____ any further responsibilities.
A.
take on
B.
put on
C.
get on
D.
look up
【简答题】Part II. Listen to the passage; fill in the blanks and read aloud. Mr.Jones and Mr.Brown worked in the (l)______ office. One day Mr. Jones said to Mr.Brown, “We are going to give a small party at our ...
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