【多选题】有机涂料依其主要成膜物质与稀释剂不同,有:(BCD)。
【单选题】What suggestion does the author make in order to grasp this opportunity?
A.
Search for new energy sources.
B.
Forbid motor transportation.
C.
Accept a new life style.
D.
Adopt a new form. of invention.
【单选题】前照灯近光灯丝损坏,会造成前照灯( ) 。
【多选题】有机涂料依其主要成膜物质与稀释剂不同,有:()。
【单选题】What suggestion does the author give in the passage?
A.
The best choice for a buyer is to get a product in a plain package.
B.
A buyer should get what he needs most.
C.
The quality of a container has nothing to do with the quality of the product.
D.
Do not buy the product which is sold in a glass or dish.
【简答题】自然连接运算由笛卡尔积, ________ 和 ________ 操作组合而成的。
【单选题】前照灯近光灯丝损坏,会造成前照灯( )。
【单选题】what suggestion does the author offer to parents?
A.
Rethinking the value of higher education.
B.
Investing wisely in their childrens education.
C.
Helping their children to bring their talent into full play.
D.
Avoiding too much intervention in their childrens education.
【判断题】动物体内催化β-氧化的酶分布于线粒体基质中,而长链脂肪酸的活化在线粒体外进行,所产生的脂酰CoA不能直接透过线粒体内膜。
【单选题】What suggestion does the author offer for the solution of those problems?
A.
More openness and stricter standards.
B.
To promote innovation.
D.
To embarrass those applying for a patent.