华誉养鸡场一房内有公鸡65只,母鸡只数是公鸡的7倍,这个房内共有多少只鸡?
65×7+65
=455+65,
=520(只),
答:这个房内共有520只鸡.
判断正误
小题1:Have you ever tried to talk to your son like a friend?
小题2:He was determining not to make the same mistakes.
小题3:The music performed now is written by GuJianfen.
小题4:His voice hears as if he has a cold.
小题5:It is said Yogo is great benefit to human health.
小题6:An European settler first discovered the place in 1820.
小题7: He has decided to go abroad to study with the intention of improving his English and find a job.
小题8: Would Ma Li come to Brunei, I would meet her at the airport.
小题9:He learned English over listening to the radio.
小题10:With the help of foreign experts, the factory produced twice many cars in 2000 as the year before.
汽油供给系统的功用是利用电动汽油泵向喷油器提供足够压力的汽油,()再根据来自ECU的控制信号,向进气歧管内节气门体中或进气门上方喷射定量的汽油。
A、传感器
B、喷油器
C、氧传感器