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【简答题】
X 、 Y 、 Z 、 M 、 R 、 Q 是短周期主族元素 , 部分信息如下表所示 : (1)R 在自然界中有质量数为 35 和 37 的两种核素 , 它们之间的关系是互为 ;R 在元素周期表中的位置是 。 (2)Z 的单质与水反应的化学方程式是 。 (3)Y 与 R 相比 , 非金属性较强的是 ( 用元素符号表示 ), 下列事实能证明这一结论的 是 ( 选填字母序号 ) 。 A. 常温下 Y 的单质呈固态 ,R 的单质呈气态 B. 稳定性 XR
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举一反三
【单选题】After he the golf club, he has a number of competitions.
A.
took part in; taken part in
B.
joined in; joined in
C.
joined; joined
D.
joined; taken part in
【单选题】He ________ the club and ______ a lot of its activities in his spare time. [ ]
A.
took part in; joined
B.
joined; took part in
C.
joined; took a part in
D.
took part in; took part in
【单选题】As a young man, he ________ many social activities and later _______ the Party.
A.
took part in; joined
B.
took part in ; joined in
C.
joined in; took part in
D.
joined; took part
【单选题】患者男，45岁，当天上午被诊断肝癌。与患者沟通中，患者的哪项表述提示其正处于震惊否认期
A.
“我身体那么好，得肝癌是因为酒喝的太多了吗？
B.
你看我能吃能睡，癌症病人有这样的吗？再查查吧！“
C.
“我的孩子还没毕业，我这一病怎么办啊？”
D.
“能帮我打听一下哪里治肝癌的效果特别好吗？”
E.
“你们去忙吧，别管我了。”
【单选题】患者男,45岁,当天上午被诊断肝癌。与患者沟通中,患者的哪项表述提示其正处于震惊否认期
A.
“我身体那么好，得肝癌是因为酒喝得太多了吗？”
B.
“你看我能吃能睡，癌症患者有这样的吗？再查查吧！”
C.
“我的孩子还没毕业，我这一病怎么办啊？”
D.
“能帮我打听一下哪里治肝癌的效果特别好吗？”
E.
“你们去忙吧，别管我了。”
【单选题】He _____ the club and _____ its activities.
A.
took part in; joined
B.
joined; took part in
C.
joined; took a part in
D.
took part in; took part in
【单选题】患者，男，45岁。当天上午被诊断肝癌。在与患者沟通中，患者的哪项表述提示其处于震惊否认期( )
A.
'我身体那么好，得肝癌是因为酒喝得太多吗？'
B.
'你看我能吃能睡，癌症病人有这样的吗？再查查吧！'
C.
'我的孩子还没毕业，我这一病怎么办啊？'
D.
'能帮我打听一下哪里治肝癌的效果特别好吗？'
E.
'你们去忙吧，别管我了。'
【单选题】While he was at________college, he took part in political activities, and was soon thrown into prison.
A.
the; /
B.
/; the
C.
/; /
D.
the; the
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