【单选题】For a particular engine power the two-stroke engine will be considerably lighter._____the complicated valve operating mechanism of the four–stroke.
A.
Nor the two-stroke engine requires
B.
Nor does the two-stroke engine require
C.
Nor the two-stroke ensine require
D.
Nor do the two-stroke engine require
【单选题】For a particular engine power the two-stroke engine will be considerably lighter. ______ the complicated valve operating mechanism of the four-stroke.
A.
Nor the two-stroke engine requires
B.
nor does the two-stroke engine require
C.
nor the two-stroke engine require
D.
nor do the two-stroke engine require
【单选题】按照《招标投标法》规定,招标人在对某一投标人就招标文件所提出的疑问作出进一步澄清时,须()。
【判断题】牙齿的功能是咀嚼、磨碎食物。乳牙虽坚硬 ,仍易生 龋齿。