问题
单项选择题
提高压缩比使汽油机的爆震倾向加大,为此,可采取()的措施。
A.减小喷油提前角
B.减小点火提前角
C.加大喷油提前角
D.加大点火提前角
答案
参考答案:B
提高压缩比使汽油机的爆震倾向加大,为此,可采取()的措施。
A.减小喷油提前角
B.减小点火提前角
C.加大喷油提前角
D.加大点火提前角
参考答案:B
Happy Middle School is a bilingual (双语) school for children of 6-15. Now we want a cook, a library assistant(助理), a PE teacher and a language(语言) teacher.
|