But over the past decade, graffiti has all but disappeared from Britain's cities.(

第1题

I ____________ home at half past six.

A.was at

B.come at

C.arrive in

D.go to

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第2题

I have been trying to contact her （)the past week.

A.since

B.for

C.till

D.through

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第3题

已知直线DE的端点E比D高，DE=50，用换面法作d'e'。

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第4题

In the past, a teacher’s main responsibility was to _______ knowledge to students.

A.transmit

B.transit

C.transform

D.transport

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第5题

Diesel engine blow-by is the leakage of combustion gases past the（).A.oil rings onlyB.c

Diesel engine blow-by is the leakage of combustion gases past the().

A.oil rings only

B.compression and scraper rings

C.cylinder liner sealing

D.cylinder liner ring grooves

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第6题

平面ABC和直线DE的相对位置()。

A.相交

B.平行

C.不确定

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第7题

表达式LEN（'ABC'－'DE')的值是______。

A.1

B.3

C.5

D.7

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第8题

能带宽度DE 大小由晶体性质决定，并且与晶体所包含的原子数N有关。（)

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第9题

To spell the past form. of the following words when used as verbs, to which one should we first add –K- then -ED______？

A.lock

B.panic

C.pick

D.arch

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第10题

过点A作直线AB，使其平行于直线DE;作直线AC使其与直线DE相交，其交点距H面为20mm。

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第11题

The writer uses past tenses.（)

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