问答题Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will be 3/4 of Jane's age. How old is Jane now?

第1题

Medicine DirectionsTake two tablets with warm water, followed by one tablet every eight hours, as required. For maximum nighttime and early morning relief, take two tablets at bedtime. Do not exceed six tablets in twenty-four hours.For children six to twelve years old, give half the adult dosage. For children under six years old consult your doctor.Reduce dosage if nervousness, restlessness, or sleeplessness occurs.The label on this medicine bottle clearly warns not to take more than ______.A．twenty-four tablets a dayB．eight tablets a dayC．six tablets a dayD．three tablets a day

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第2题

It can be learned from the passage that about four billion years ago ______.A. the earth was in molten stateB. the earth surface temperature was above 100℃C. the earth surface temperature was below 100℃D. rain water could remain on the earth

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第3题

There used to be an old city here, which was ()under the river about 2000 years ago.A、insultedB、insulatedC、buriedD、interrupted

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第4题

His father is ________ than his mother.A.older four yearsB.as four years olderC.four years olderD.four years bigger

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第5题

The approval period for a shipboard Oil Pollution Emergency Plan expires after ______.A.three yearsB.four yearsC.five yearsD.two years

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第6题

My brother is four years older than me and someone I look______ to, even though he is shorter than me.A、upB、downC、belowD、over

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第7题

The International Oil Pollution Prevention Certificate is valid for a period ofA.one year from the date of issueB.five years from the date of issueC.three years from the date of issueD.four years from the date of issue

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