一名青少年正常情况下,每天约需0.8g钙.若每天从食物中得到0.6g钙,其余由钙

题型:问答题

问题:

一名青少年正常情况下,每天约需0.8g钙.若每天从食物中得到0.6g钙,其余由钙片补充,则每天须吃葡萄糖酸钙(C6H11O72Ca的质量分数为85%的钙片______g.(保留两位小数)

考点:相对分子质量物质组成元素的质量比物质组成元素的质量分数
题型:问答题

—Have you seen Tony recently?  

—No, but I ______ dinner with him on Sunday.  [ ]

A. would have  

B. have had    

C. have been having    

D. am having

题型:问答题

关于液压制动系制动不良,失效的原因。甲认为总泵皮碗,密封胶圈老化,发胀或翻转只是引起上述故障的原因。乙认为,制动蹄片磨损过量是其中之一。丙认为,制动液压系统中有空气是其中之一。看法正确的是()。

A.甲和乙

B.乙和丙

C.丙和甲

D.均错

题型:问答题
In a land far away, once upon a time there was great poverty (贫困),and only the rich could manage without great _26_. Three of those rich men and their servants were_27_together on a road when they came to a very_28_village.
The first could not stand seeing the poverty, _29  he took all the gold and jewels from his wagons (四轮载重马车) and shared _30 out among the villagers. He wished them all the best of luck, and he left.
The second rich man ,seeing the _31  situation, stopped for a short time and gave _32  all his food and drink, since he _33  see that money would be of little _34  to them. He made sure that they each _35  their fair share and would have enough food to _36  for some time . Then, he left.
The third rich man, on seeing such poverty, _37  and went straight through the _38  without stopping. The two other rich men saw this from a distance and commented with each other_39  the third rich man lacked sympathy. It was _40  that they themselves had been there to offer help.
However, three days later, they  41 the  third rich man ,who was coming in the opposite direction . He was  42  travelling quickly, but his wagons,  43  the gold and valuables they had been  44  ,were now full of farming tools and bags of  45  .He was rushing back to help them out of poverty.
小题1:
A.lossB.expectationsC.successD.problems
小题2:
A.standingB.travellingC.gatheringD.running
小题3:
A.farawayB.poorC.differentD.ancient
小题4:
A.unlessB.becauseC.soD.if
小题5:
A.themB.anythingC.nothingD.those
小题6:
A.curiousB.worryingC.dangerousD.puzzling
小题7:
A.the villagersB.his servantsC.the othersD.the rest
小题8:
A.couldB.mightC.shouldD.must
小题9:
A.interestB.concernC.useD.attraction
小题10:
A.returnedB.gainedC.offeredD.received
小题11:
A.remainB.lastC.supplyD.share
小题12:
A.turned backB.set outC.showed offD.speeded
小题13:
A.villageB.landC.fieldD.road
小题14:
A.whetherB.howC.whereD.when
小题15:
A.goodB.certainC.trueD.strange
小题16:
A.welcomedB.metC.tacceptedD.persuaded
小题17:
A.stillB.alreadyC.alwaysD.indeed
小题18:
A.exceptB.instead ofC.apart fromD.along with
小题19:
A.loadingB.treasuringC.carryingD.earning
小题20:
A.foodB.jewelsC.moneyD.seeds
题型:问答题

建立HSE管理体系要倡导哪些新的理念?

题型:问答题

突然颜面麻木不仁、口眼歪斜、颈项拘急,多为

A.风淫证
B.寒淫证
C.暑淫证
D.湿淫证
E.燥淫证

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