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【单选题】
关于DNA分子，说法错误的是A.
DNA是具有遗传特性的物质
B.
碱基G与C通过2X氢键配对
C.
维持DNA二级结构的力主要是氢键和碱基堆积力
D.
DNA中G+C含量高的区段较Ad-T含量高的区段稳定
E.
DNA是极性分子
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【单选题】When she arrived at the crossroads (十字路口), she went it the wrong______.
A.
direction
B.
location
C.
place
D.
course
【单选题】下列关于监理规划作用的表述中,错误的是( )
A.
监理规划的基本作用是指导监理机构全面展开监理工作
B.
监理规划是政府建设主管部门对监理单位在设立时审查的主要材料
C.
监理规划是业主了解和确认监理单位履行合同的依据
D.
监理规划是监理单位内部考核的依据和重要的存档资料
【单选题】下列关于监理规划作用的表述中,错误的是( )。
A.
监理规划是项目监理机构全面开展监理工作的指导性文件
B.
监理规划是工程定发监理主管机构对监理单位实施监督管理的重要依据
C.
监理规划是建设单位了解监理单位工作的参考文件
D.
监理规划是监理单位重要的存档资料
【单选题】When did Keiko make her reservation?
A.
This morning
B.
When she arrived at the hotel
C.
Wednesday morning
D.
After the conference
【简答题】What are suprasegmental features? How do the major suprasegmental features of English function in conveying meaning?
【简答题】Last summer was Ann's first trip to Spain(西班牙). She was very excited. But when she arrived at the hotel, she found that her Spanish money wasn't in her handbag. She looked for it carefully in all her ...
【简答题】LTE系统中，一个无线帧时间长度为____
【单选题】When she arrived at the office, Mr. Smith ______, so they had only time for a few words.
A.
had gone away
B.
was just going away
C.
just went away
D.
has just gone away
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