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[主观题]

Since mixtures are composed of two or more pure substances, each______ changes state at a

different temperature.

A.company

B.companion

C.compound

D.component

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更多“Since mixtures are composed of…”相关的问题
第1题
A.Place the food on warmer spots.B.Use prepared feed mixtures only.C.Avoid using any c

A.Place the food on warmer spots.

B.Use prepared feed mixtures only.

C.Avoid using any contaminated food.

D.Continue the feeding till it gets warm.

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第2题
听力原文:In ancient societies sick people had to rely on medicine men and witch doctors. (

听力原文: In ancient societies sick people had to rely on medicine men and witch doctors. (Some people still rely on them.) It was believed that a person was sick because he had been attacked by evil spirits. The witch doctor's job was to drive off those spirits. His technique involved a combination of three methods. The first method was religious. He chanted magic words and good luck charms. He thought these words and charms had the power over the evil spirits. Secondly, he fed the patient some mixtures. These mixtures were often filthy and disgusting, to make the evil spirits so uncomfortable that they would gladly run away.

The third method was to give the patient medicines prepared from certain plants and herbs. From our point of view, this was the only method that had any value. Modern scientific study has shown that some of these remedies had real usefulness in curing sickness or relieving pain.

(37)

A.Ill luck.

B.Evil spirits.

C.Filthy food.

D.Viruses.

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第3题
In primitive societies sick people had to rely on medicine men andwitch doctors.(Some peo

In primitive societies sick people had to rely on medicine men and

witch doctors.(Some people still rely on them. ) It was believed that a per-

son was sick because he has been attacked by evil spirits The witch doctor's S1.______

job was to drive away these spirits. S2.______

His technique involved a combination of three methods, first of which S3.______

was religious. He chanted magic words, and used good luck charms which

he thought had power on the evil spirits that supposedly had entered the S4.______

victim's body. Secondly, he deliberately fed the ancient mixtures, and were S5.______

often filthy and disgusting, to make the evil spirits so uncomfortable that

they would glad run away and so enable the patient to get well. The third S6.______

method was to give the patient medicines preparing from certain plants and S7.______

herbs that were similar in shape or texture to the various organs of the

body. From our points of view, this was the only method that had any val- S8.______

ue. Modem scientific study has shown that some of these remedies had real

usefulness in curing sickness, and at least in relieving pain, but not for the S9.______

reasons advanced by the witch doctors. S10.______

【S1】

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第4题
___ 8 years since I left my hometown.

A.It was

B. It is

C. There is

D. There was

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第5题
___the ancient Egyptians built the pyramids is not known.

A.Which

B.Since

C.That

D.How

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第6题
We have to accept the fact()there is a shortage of qualified teachers in the countrysi

A.that

B.because

C.which

D.since

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第7题
____you are all here, let’s try and reach a decision.

A.For now

B.Now that

C.Ever since

D.By now

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第8题
I ____ to Wuhan many times since 1990.

A.went

B.have gone

C.have been

D.was

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