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【单选题】
含酚废水的保存用磷酸酸化,加CuSO4的作用是()。
A.
抑制微生物氧化作用
B.
还原杂质
C.
氧化杂质
D.
分解杂质
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参考答案：
举一反三
【单选题】党的十九大进一步明确全面建成小康社会的战略安排。从现在到2020年是全面建成小康社会的()。
A.
决胜期
B.
攻坚期
C.
窗口期
D.
攻关期
查看完整题目与答案
【单选题】(Single choice) 3. The binary number 11011101 is equal to the decimal number
A.
121
B.
221
C.
441
D.
256
查看完整题目与答案
【单选题】HTML 代码: div p class="myClass" span p class="notMyClass" jQuery 代码: $("div,span,p.myClass") 结果:( )
A.
[ div , p class="myClass" , span ]
B.
[ p class="myClass" ]
C.
[ p class="notMyClass" ]
D.
[ div ]
查看完整题目与答案
【单选题】蜗杆传动中,已知蜗杆轴上扭矩为T1,蜗杆分度圆直径d1,蜗轮轴上扭矩T2,蜗轮分度圆直径d2,压力角α,则作用在蜗轮上的圆周力Ft1为 。
A.
Ft2
B.
2T1∕d2
C.
2T1∕d1
D.
2T2∕d1
E.
2T2∕d2
查看完整题目与答案
【单选题】蜗杆传动中,已知蜗杆轴上扭矩为T1,蜗杆分度圆直径d1,蜗轮轴上扭矩T2,蜗轮分度圆直径d2,压力α,则作用在蜗杆上的轴向力Fɑ2为 。
A.
2T1∕d1
B.
2T2∕d2
C.
2T1∕d2
D.
2T2∕d1
E.
Ft2
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【单选题】(Single choice) 3. The output of an AND gate with inputs A, B and C is 0 (LOW) when
A.
A = 0, B = 0, C = 0
B.
A = 0, B = 1, C = 1
C.
both answers (a) and (b)
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【单选题】(Single choice) Why can services give an organization or a destination a competitive edge?
A.
Because the customers tend not to tell family, friends, neighbors, and coworkers their unforgettable experience.
B.
Because the travel experience is largely contributed by services provided by an organization or a destination.
C.
Because the travel experience is largely contributed by the facilities provided by an organization or a destination.
D.
Because tangible products are more important than intangible services.
查看完整题目与答案
【单选题】HTML 代码 : div span pclass="notMyClass" pclass="notMyClass" jQuery 代码 : $("div,span,p.myClass") 结果 :
A.
div span pclass="notMyClass" pclass="notMyClass"
B.
>
C.
pclass="notMyClass" pclass="notMyClass"
D.
div
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【单选题】HTML 代码: divpspan。使用了多元素选择器是:( )
A.
$("#divid")
B.
$(". pclass ")
C.
$("div,p,span")
D.
$("span")
查看完整题目与答案
【判断题】从现在到2020年是全面建成小康社会的决胜期
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】党的十九大进一步明确全面建成小康社会的战略安排。从现在到2020年是全面建成小康社会的()。
A.
决胜期
B.
攻坚期
C.
窗口期
D.
攻关期
查看完整题目与答案
【单选题】(Single choice) 3. The binary number 11011101 is equal to the decimal number
A.
121
B.
221
C.
441
D.
256
查看完整题目与答案
【单选题】HTML 代码: div p class="myClass" span p class="notMyClass" jQuery 代码: $("div,span,p.myClass") 结果:( )
A.
[ div , p class="myClass" , span ]
B.
[ p class="myClass" ]
C.
[ p class="notMyClass" ]
D.
[ div ]
查看完整题目与答案
【单选题】蜗杆传动中,已知蜗杆轴上扭矩为T1,蜗杆分度圆直径d1,蜗轮轴上扭矩T2,蜗轮分度圆直径d2,压力角α,则作用在蜗轮上的圆周力Ft1为 。
A.
Ft2
B.
2T1∕d2
C.
2T1∕d1
D.
2T2∕d1
E.
2T2∕d2
查看完整题目与答案
【单选题】蜗杆传动中,已知蜗杆轴上扭矩为T1,蜗杆分度圆直径d1,蜗轮轴上扭矩T2,蜗轮分度圆直径d2,压力α,则作用在蜗杆上的轴向力Fɑ2为 。
A.
2T1∕d1
B.
2T2∕d2
C.
2T1∕d2
D.
2T2∕d1
E.
Ft2
查看完整题目与答案
【单选题】(Single choice) 3. The output of an AND gate with inputs A, B and C is 0 (LOW) when
A.
A = 0, B = 0, C = 0
B.
A = 0, B = 1, C = 1
C.
both answers (a) and (b)
查看完整题目与答案
【单选题】(Single choice) Why can services give an organization or a destination a competitive edge?
A.
Because the customers tend not to tell family, friends, neighbors, and coworkers their unforgettable experience.
B.
Because the travel experience is largely contributed by services provided by an organization or a destination.
C.
Because the travel experience is largely contributed by the facilities provided by an organization or a destination.
D.
Because tangible products are more important than intangible services.
查看完整题目与答案
【单选题】HTML 代码 : div span pclass="notMyClass" pclass="notMyClass" jQuery 代码 : $("div,span,p.myClass") 结果 :
A.
div span pclass="notMyClass" pclass="notMyClass"
B.
>
C.
pclass="notMyClass" pclass="notMyClass"
D.
div
查看完整题目与答案
【单选题】HTML 代码: divpspan。使用了多元素选择器是:( )
A.
$("#divid")
B.
$(". pclass ")
C.
$("div,p,span")
D.
$("span")
查看完整题目与答案
【判断题】从现在到2020年是全面建成小康社会的决胜期
A.
正确
B.
错误
查看完整题目与答案
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