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【单选题】
3DP技术使用的原材料是A.
光敏树脂
B.
金属材料
C.
高分子材料
D.
粉末材料
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举一反三
【多选题】关于防静电的措施，下列说法正确的有()
A.
增加湿度可减少静电荷的产生和积聚机会
B.
接地可以使导体上的静电导走。
C.
在绝缘体表面上涂上亲水性高的化学涂料，可令静电荷完全分布并导走。
D.
在储存和运输时采用，把产品放在屏蔽容器内，防止外静电场的干扰和影响以及在容器内活动时，就不会产生静电荷。
【单选题】According to the writer of the article．the two words“harmonization”and“standardization”
A.
often refer to the same thing．
B.
are rather different in that they originated from different sources．
C.
always mean the same thing．
D.
occasional ly refer to the same thing．
【简答题】Whether work should be placedamong the causes of happiness or among the causes of unhappiness may perhaps beregarded as a doubtful question. There is certainly much work which iceedingly weary and ...
【简答题】International Organization for Standardization
【单选题】An example of standardization is:
A.
Pepsi using the same theme in all of its global markets.
B.
using women with their faces covered in ads for Islamic countries.
C.
developing a website in several languages.
D.
using local salespeople in a global market.
【单选题】Who brought standardization to English?
A.
William the Conqueror
B.
William Shakespeare
C.
William Caxton
D.
William Cox
【单选题】Guilin is the most beautiful place _______ people all over the world want to visit.
A.
where
B.
which
C.
what
D.
that
【简答题】根据官能团的数目,可分为一元醛酮和多元醛酮.____
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