保护接地导线是用()线。 A.黄色 B.兰色 C.黄绿交叉双色D红白交叉双色

题型:单项选择题

问题:

保护接地导线是用()线。

A.黄色

B.兰色

C.黄绿交叉双色

D红白交叉双色

考点:电工特种作业操作证电工复审电工复审题库
题型:单项选择题
已知12a
1
18
-2
a
8
+
8a
4
=6
,则a=______.
题型:单项选择题
When I was about 12 years old, I really wanted a new bike! I __36__ my parents my birthday wish, but I knew there was little hope because my family could __37__ have that money.
On my birthday my parents told me they had my __38__ outside in the back yard. At once I __39__ out to the yard. There was my bike, __40__ it wasn’t the bike that I thought it would be. This one was pink, old and worn with age. It was so __41__! I thought I __42__ my parents’ feelings because I could see the disappointment __43__ their faces and I was sure they could see it on mine. I __44__ the old bike and rode it, feeling __45__ that I had made my parents feel this way. So I put on a smile, rode as fast as I could and didn’t __46__...
As time went by, I began to understand my parents gave me __47__ much more than just a rusty(生锈的)old bike. They gave me a life lesson about __48__. When you give something out of love, it doesn’t matter what it is in fact. What matters is the love that is in it. I like to remember this __49__ because giving a gift is not about money. It’s about how much love you can feel from it. Do remember, a gift that __50__ two dollars isn’t any less valuable(有价值的)than one that costs one hundred dollars, or even more.
小题1:
A.talkedB.spokeC.saidD.told
小题2:
A.hardlyB.quicklyC.slowlyD.easily
小题3:
A.guitar B.gift C.cakeD.card
小题4:
A.rushedB.rode C.climbedD.came
小题5:
A.andB.orC.butD.because
小题6:
A.excitingB.interestingC.relaxingD.disappointing
小题7:
A.likedB.hatedC.hurtD.thanked
小题8:
A.onB.inC.atD.for
小题9:
A.got inB.got onC.got offD.got up
小题10:
A.surprisedB.excitedC.happyD.bad
小题11:
A.look aheadB.look backC.come upD.come down
小题12:
A.anythingB.nothingC.somethingD.everything
小题13:
A.loveB.moneyC.friendshipD.knowledge
小题14:
A.ideaB.newsC.adviceD.story
小题15:
A.spendsB.costsC.paysD.offers
题型:单项选择题

商品包装是保护商品在流通过程中品质完好和数量完整的重要举措。

题型:单项选择题

治疗急性肺脓肿,停用抗生素指征是()

A.已用抗生素8周

B.临床症状消失

C.体征恢复正常

D.胸片示脓肿液消失

E.胸片示炎变吸收,留有纤维条影

题型:单项选择题

下列关于氟喹诺酮类药物的作用机制,正确的是()。

A.抑制细菌的转肽酶而影响细菌黏肽合成

B.抑制细菌二氢叶酸合成酶

C.抑制细菌蛋白合成

D.抑制细菌二氢叶酸还原酶

E.抑制细菌DNA螺旋酶,阻碍DNA复制

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