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【单选题】
下列关于病毒的叙述不正确的是( )A.
病毒比细菌小得多
B.
病毒的形状多样，有球形、、蝌蚪形等
C.
病毒都没有细胞结构
D.
病毒对人类都有害
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【简答题】为研究盛装浓硫酸的铁质材料(碳素钢)与热浓硫酸的反应,某学习小组进行了以下探究活动： [实验] 称取铁钉5.6g放入15.0mL浓硫酸中，加热，充分应后得到溶液X并收集到气体Y。 ①甲同学认为X中除 外还可能含有 。若要确认其中的 ，应选用 ( 选填序号）。 a.KSCN溶液和氯水 b.铁粉和KSCN溶液 c.浓氨水 d.酸性 溶液 ②乙同学取448mL（标准状况）气体Y通入足量...
【单选题】孟子提出的五伦规范是
A.
亲亲仁民爱物
B.
父慈子孝，兄良弟悌，夫义妇听，长惠幼顺，君仁臣忠。
C.
君君臣臣父父子子
D.
父子有亲，君臣有义，夫妇有别，长幼有序，朋友有信。
【单选题】Mind Those Manners on the Subway So, there you are, just sitting there in the subway car, enjoying that book you just bought.______(46) Or, the person sitting next to you takes out a nail clipper (指甲刀...
A.
Don’t eat food in your car．
B.
Don’t shout into your mobile phone on a bus or subway．
C.
We all know that some behaviors are simply unacceptable．
D.
Many people do this on subways，but it's really annoying．
E.
Getting off and on in an orderly manner can save time for all．
F.
Suddenly，you feel someone leaning over your shoulder reading along with you．第 46 题 请选择（46）处的最佳答案．
【单选题】Mind Those Manners on the Subway So, there you are, just sitting there in the subway car, enjoying that book you just bought. __________(46) Or, the person sitting next to you takes out a nail clipper...
A.
Don't eat food in your car.
B.
Don't shout into your mobile phone.on a bus or subway.
C.
We all know that some behaviors are simply unacceptable.
D.
Many people do this on subways, but it's really annoying.
E.
Getting off and on in an orderly manner can save time for all.
F.
Suddenly, you feel someone leaning over your shoulder reading along with you. 第 46 题 请选择（46）处的最佳答案．
【简答题】简述集成显卡和独立显卡的优缺点。
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