配制一定溶质质量分数的溶液一般包括计算、称量、溶解等几个步骤: (1)如果配制8

题型:问答题

问题:

配制一定溶质质量分数的溶液一般包括计算、称量、溶解等几个步骤:

(1)如果配制80g;溶质质量分数为15%的NaCl溶液,需称量NaCl的质量为______g;如在称量过程中,发现天平指针向左偏,此时应进行的操作是______

(2)如果配制汽车用铅蓄电池中溶质质量分数为30%的稀硫酸500g,需要溶质质量分数为98%(密度为1.84g/cm3)的浓硫酸______ml(取整数),应选用______(从50ml、100ml中选择)的量简量取,稀释浓硫酸的操作为______.

考点:溶液的配制测容器—量筒称量器—天平浓硫酸的稀释
题型:问答题

—I am afraid the manager can’t see you until 5 o’clock.

—Oh, _____ I won’t wait.

A.no doubt

B.after all

C.in that case 

D.in this way

题型:问答题
请认真阅读下面短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
An old woman walked around as she pushed her shopping cart full of many things. She was
 36 . Her hair was untidy. Her clothes were torn. And some of her teeth were missing.
She  37  and asked me for change. Instead of giving her change, I  38  her to eat out and she  39 . We went across the street to an outdoor café so she could  40  her cart while we had lunch. The  41  was surprised when this woman appeared and did not want to serve us,  42  she forced herself. We ate our lunch. She was very  43  and the food disappeared almost as soon as it arrived.
When we were ready to  44 , I was feeling very good about myself and then she asked for a  45 . It was then that I had to  46  myself and all the hidden bias (偏见) that I had towards this  47.
She wasn’t wrong, but my reluctance(不愿)must have  48 . I held her in my arms carelessly and  49 I felt shame. She thanked me for lunch and then left.
I  50  there for a moment and realized that I had  51  to give this woman the one thing that cost  52  —love. I ran after the woman and caught up with her and asked her if I could give her a  53  hug and she agreed. I gave the woman the best one I’ve ever given anyone. “That’s getting it right,” she said and her big  54  lit my path as we parted.
The  55  I learned was that if you’re going to give, then give it your all and get it right the first time.
小题1:
A.happyB.dirtyC.nervousD.small
小题2:
A.ranB.arrivedC.stoppedD.hid
小题3:
A.invitedB.pushedC.forcedD.wished
小题4:
A.refusedB.returnedC.leftD.agreed
小题5:
A.watch overB.get hold ofC.reach forD.catch up with
小题6:
A.customer B.shopperC.waitress D.traveler
小题7:
A.andB.butC.orD.so
小题8:
A.thirstyB.sleepyC.tiredD.hungry
小题9:
A.leaveB.restC.moveD.apologize
小题10:
A.breakB.giftC.hugD.partner
小题11:
A.believeB.faceC.hurtD.introduce
小题12:
A.behaviorB.nationC.personD.district
小题13:
A.goneB.shownC.resultedD.remained
小题14:
A.slowlyB.againC.graduallyD.soon
小题15:
A.stoodB.criedC.layD.drank
小题16:
A.decidedB.hopedC.triedD.failed
小题17:
A.anythingB.nothingC.somethingD.everything
小题18:
A.realB.quietC.braveD.safe
小题19:
A.teeth B.smileC.feetD.mouth
小题20:
A.factB.informationC.lessonD.expression
题型:问答题

男性,50岁,脓血便半年余,纤维结肠镜发现距肛门11cm处直肠前壁有一分叶状息肉,直径1cm,基底宽,病理证实为直肠息肉恶性变,手术方式应选择

A.腹会阴联合直肠癌根治术
B.乙状结肠造瘘术
C.经肛门局部切除术
D.经腹直肠癌切除术

题型:问答题

以下关于加强网吧管理表述有误的一项是()

A.建立健全网吧管理协调机制,建立健全文化市场综合执法队伍

B.建立社会监督机制,聘请网吧监督员,并提供必要经费支持

C.推动网吧经营连锁化,加大网吧建设力度

D.成立网吧行业组织,加强网吧行业自律

题型:问答题

侦察与监视技术对作战的影响有哪些?

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