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听力原文: Cambridge is about 86 kilometres northeast of London. It is one of the most beautiful places in Britain. Everything about the city of Cambridge reminds you of its famous university: student on bicycles, the atmosphere of learning, traditions and the magnificent buildings of the 30 colleges that are in the University of Cambridge. Mast of the colleges stand on the hank of the Cars River the gentle river that flows through the heart of the city. Tourists and students like bearing in a kind of flat bottom boat to see the colleges or to relax themselves. If the water traffic reminds the visitor of Venice, hundreds and hundreds of them. They provide a cheap form. of transport for the students and very conveniently of getting around the Cambridge' s nearer streets. (31)
A.
Watching traditional plays.
B.
Visiting the magnificent libraries.
C.
Boating on the river.
D.
Cycling in narrow streets.
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【单选题】When she returned from the meeting, Miss Green found ______ her lesson.
A.
all her students listening to
B.
many recorders listening to
C.
every student recording
【单选题】氢化钙(CaH2)固体是一种储氢材料,是登山运动员常用的能源提供剂。已知: 1 CaH2通常用氢气与钙加热制得。 2 CaH2要密封保存,遇水反应生成氢氧化钙和氢气。 下列说法正确的是:
A.
氢化钙的化学性质稳定
B.
氢化钙作为能源提供剂是因为与水反应能生成氢气
C.
氢化钙可用于干燥潮湿的二氧化碳、氯化氢等气体
D.
氢化钙不能用于干燥碱性物质,如胺和吡啶
【简答题】(8分)氢化钙(CaH 2 )是一种储氢材料,是登山运动员常用的能源提供剂。甲、乙两位同学选用如下装置,用氢气与金属钙加热制备氢化钙。实验结束后,两位同学对硬质玻璃管中的固体进行如下探究: 【提出问题】硬质玻璃管中的Ca是否完全转化为CaH 2 ? 【查阅资料】 ① 金属钙活动性很强,遇水反应生成氢氧化钙,同时产生一种气体; ② 氢化钙要密封保存,遇水反应放出氢气。 【猜想与实验】 1、固体为Ca...
【单选题】20X4年3月1日甲公司购入乙公司的股票进行长期投资,占被投资单位35%的股份,对被投资单位具有重大影响,支付价款1300万元(其中包括被投资公司宣布发放的上年度的现金股利300万),另外支付相关税费10万元,投资时被投资单位可辨认净资产公允价值为4000万,该项投资的初始投资成本为()万元。
A.
1300.0
B.
1010.0
C.
500.0
D.
1275.0
【单选题】两构件组成运动副的必备条件是
A.
构件组成运动副的必备条件是
B.
直接接触但无相对运动
C.
不接触但有相对运动
D.
不接触也无相对运动
【单选题】When Miss Green began to something, the children stopped and became quiet.
A.
speak; telling
B.
tell; speaking
C.
talk; saying
D.
say; talking
【单选题】It is ten years __ Miss Green returned to Canada.
A.
that
B.
when
C.
since
D.
as
【单选题】Miss Green____when she saw her favorite case was broken by the naughty boy.
A.
broke up
B.
had a fit
C.
was keyed up
D.
messed it up
【简答题】甲、已两个投资者向某有限责任公司投资,甲投资者投入自产产品一批,双方确认价值为180万元(假设是公允的)税务部门认定增值税为30.6万元,并开具了增值税专用发票。乙投资者投入货币资金9万元和一项专利技术,货币资金已经存入开户银行。增值税专用发票注明价款为80万元,增值税款4.8万元。假设甲乙两位投资者投资时均不产生资本公积。两年后,丙投资者向该公司追加投资,期缴付该公司的出资额为人民币176万元,...
【单选题】Miss Green recorded her lesson, so ______ when she was away.
A.
the students could do the same
B.
the students could teach themselves
C.
the students could listen to it
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