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【单选题】
1958年Meselson和Stahl利用15N标记大肠杆菌DNA实验证明了
A.
DNA能被复制
B.
DNA基因可转录为mRNA
C.
DNA基因可表达为蛋白质
D.
DNA的半保留复制机制
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【单选题】My sister likes playing_____guitar and she also likes playing______soccer.
A.
the; the
B.
/; /
C.
/; the
D.
the; /
【简答题】请举例说明,在学习歌曲《节日欢歌》中,你是如何解决演唱中的重难点问题的。 咬字吐字方面: 情感表达方面: 难点乐句方面: 其他:
【单选题】My sister likes English ______. [     ]
A.
a lot of
B.
a lot
C.
lots of
【简答题】六1 早在20世纪60年代以前,人们就已经在用( )报文发送商务文件;70年代又普遍 采用方便、快捷的( )来替代电报, 70年代末应用于企业间的电子数据交换( )三个字母大写
【单选题】—Who likes playing ______ volleyball? —My sister ______. [     ]
A.
the; likes
B.
/, likes
C.
/, does
D.
the, does
【单选题】My sister likes music
A.
a
B.
an
C.
the.
D.
不填
【单选题】患者,52岁,绝经3年后出现阴道流血已近2个月。检查:宫颈光滑,子宫略饱满,两侧附件(-)。为明确诊断宜选择下列哪一项检查
A.
宫腔检查
B.
分段诊断性刮宫
C.
阴道镜检查后行宫颈活组织检查
D.
阴道后穹隆涂片细胞学检查
E.
宫颈刮片细胞学检查
【单选题】My sister likes playing ____volleyball while my brother likes playing ___ piano.
A.
the; the
B.
a ; a
C.
the; /
D.
/ ; the
【单选题】My sister _____ to go _____ at all. [     ]
A.
likes, swimming
B.
doesn't like, swimming
C.
likes, to swim
D.
doesn't like, to swimming
【单选题】My sister likes _____________ TV. [     ]
A.
to watch
B.
watch
C.
watches
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