更多"Plastics materials are now replacin"的相关试题:
[单项选择]There are many different plastics materials with many different properties, but they all have certain features in common.
A. 虽然有许多具有不同性质的塑料材料，但是他们都具有某些共同的特征。
B. 有许多不同品种的塑料材料，但是他们的形状是一致的。
C. 虽然有很多具有不同特征的塑料材料，但它们都有某一个相同点。
D. 有很多不同的塑料材料，它们在很多方面都不同，但在某一方面是相同的。
[单项选择]Many museums now provide educational services and children's departments. ______the usual displays, they also offer film showings and dance programs.
A. As well as
B. Rather than
C. With the exception of
D. In addition to
[单项选择]Plastics ______ many conventional materials.
A. has take the place of
B. have taken place
C. have taken the place of
D. has taken place
[单项选择]How many orangutans are left now
A. 25 000.
B. Over 25 000.
C. About 25 000.
D. No more than 25 000.
[单项选择]______ the passage of light, many new plastics are processed using technologies rivaling those used in the manufacture of computer chips.
A. For the better of
B. Permitting better
C. To better permit
D. It is better for
[单项选择]We use plastics ______ wood and metal now.
A. to take place
B. to take of
C. take the place of
D. in place of
[单项选择]Many parents now remember the teacher's E-mail address and the school's website because ______.
[单项选择]Now many manufacturers build their business reputations by enclosing ______ in the new products in case of damage in shipment or by incorrect operation.
A. categories
B. accessories
C. analogies
D. observatories
[单项选择]Now in China many young peopleimportant positions in the government.
A. seize
B. catch
C. grasp
D. hold
[单项选择]Now many renowned universities tend to have their own ______ middle and senior schools.
A. assigned
B. enrolled
C. mingled
D. affiliated
[单项选择]According to the report, how many overseas are now studying in Britain
A. 100,000
B. 300,000
C. 600,000
D. 900,000
[单项选择]Approximately how many electric cars are now on California roads
A. 200
B. 2,000
C. 20,000
D. 200,000
[单项选择]In many countries now, smoking is not ______ in public places.
A. permissive
B. permissible
C. permutable
D. pernicious
[单项选择]Many sharks fish and other sea animals.
A. live with
B. depend in
C. feed on
D. eat at
[单项选择]Research shows that many voters who haven't yet made up their minds are ______towards the Democrats.
A. sliding
B. transferring
C. skidding
D. tilting
