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These days it is found that school students hardly have any sports. Is it because they have no interests in sports? It may not be true. They often say they have 1 more important things to do. What are these important things? Exams! They have to 2 themselves ready for all kinds of exams and tests in school. So many of them almost become bookworms ( 书虫 ). In the past, they could do 3 they liked in summer holidays, but now they have to 4 all their time preparing for the exams. So 5 have kept them away from going in for sports. Because of the pressure from 6 their parents and teachers, they 7 to work harder and spend most of their time on books. As for the students themselves, they don't want to 8 the exams. So it is necessary to give up their school sports and give all their spare time to their studies. It's true that a good education cannot go 9 physical training and that if a quick mind hardly goes along with a strong body, you can 10 do anything well, and then how can you make great success in life? 小题1: A.another B.other C.much D.any 小题2: A.make B.have C.get D.let 小题3: A.some thing B.something C.everything D.nothing 小题4: A.give B.spend C.take D.cost 小题5: A.teachers B.parents C.studies D.holidays 小题6: A.either B.both C.neither D.none of 小题7: A.try B.hope C.have D.enjoy 小题8: A.miss B.lose C.leave D.fail 小题9: A.without B.with C.out D.in 小题10: A.always B.ever C.never D.still
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皮皮学刷刷变学霸
举一反三
【多选题】根据证券投资的对象,可将证券分为( )。
A.
债券投资
B.
组合投资
C.
基金投资
D.
股票投资
【多选题】根据证券投资的对象不同,可将证券分为
A.
债券投资
B.
基金投资
C.
其他投资
D.
股票投资
【多选题】根据证券投资的对象,可将证券分类为( )。
A.
债券投资
B.
组合投资
C.
基金投资
D.
股票投资
【简答题】无牙颌患者,戴全口义齿咬合时,上下前牙呈水平开 ,上下后牙呈尖对尖状态,上下中线未对齐,面下1/3增高。正确的处理方法是A、大量磨改后牙牙尖 B、嘱患者练习下颌前伸对齐上下牙 C、更换上前牙,向腭侧排列,纠正水平开 D、更换下前牙,向唇侧排列,纠正水平开 E、重做义齿 最常见的原因是A、确定颌位关系时后牙咬合力量大于前牙 B、确定颌位关系时前牙咬合力量大于后牙 C、确定颌位关系时下颌做了前伸动作 ...
【单选题】以下说法中正确的是( )。
A.
溶胶在热力学和动力学上都是稳定系统
B.
溶胶与真溶液一样是均相系统
C.
能产生丁达尔效应的分散系统是溶胶
D.
通过超显微镜能看到胶体粒子的形状和大小
【多选题】以下说法中不正确的是( )
A.
溶胶在热力学和动力学上都是稳定系统
B.
溶胶与真溶液一样是均相系统
C.
能产生丁达尔效应的分散系统是溶胶
D.
通过超显微镜能看到胶体粒子的形状和大小
【单选题】以下说法中正确的是
A.
溶胶在热力学和动力学上都是稳定系统
B.
溶胶与真溶液一样是均相系统
C.
能产生丁达尔效应的分散系统是溶胶
D.
通过超显微镜也不能看到胶体粒子的形状和大小
【多选题】设随机变量X服从均值为2的指数分布,X的分布函数为F(x),数学期望为E(X),方差为D(X),则以下结果正确的是
A.
B.
D(X)=4
C.
P(X<2 ︱ X>1)=F(1)
D.
P(X>2 ︱ X>1)= F(1)
E.
F.
D(X)=E(X)
G.
P(X ≤ 2 ︱ X>1)= F(2)
H.
【单选题】患者男,44岁,上下多数牙因松动拔除数年,现觉影响进食要求行固定修复。口内检查可见上颌仅余留13、12、11、21、22、23,下颌仅余留33、34,其余牙缺失,牙槽嵴低平,余留牙松动II°-III°,CBCT示:左右上颌后牙区骨宽度6-7mm,可用骨高度8-10mm,13、12、11、21、22、23、33、34牙槽骨吸收至根尖1/3。左下后牙区可用骨高度大于10mm,右侧缺牙区可用骨高度12-...
A.
肌监控仪法
B.
哥特弓描记法
C.
吞咽咬合法
D.
利用息止颌位垂直距离减去息止颌间隙的方法
【多选题】设随机变量X服从均值为2的指数分布,X的分布函数为F(x),数学期望为E(X),方差为D(X),则以下结果正确的是
A.
B.
D(X)=4
C.
P(X>2 ︱ X>1)=1-F(1)
D.
P(X>2 ︱ X>1)= F(1)
E.
F.
D(X)=E(X)
G.
P(X ≤ 2 ︱ X>1)= F(2)
H.
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