【单选题】
下列对舒适 CAN 总线的 CAN 收发器描述错误的是( C )
①
CAN-H 线的高电压平为 3.6V
②
CAN-H 线的低电压平为 0V
③
CAN-L 线的高电压为 1.4V
④
CAN-L 线的低电压平为 1.4V
【单选题】
20. He has received many presents from admirers, from the_____ to the valueless..
①
precious
②
expensive
③
priceless
④
cheap
【单选题】
About 60 percent of the students ___ from the south, the rest of them ___ from the north and foreign countries.
①
are/is
②
are/are
③
is/are
④
are
【单选题】
Do you mind telling me where you’re from?
①
Certainly. I’m from London
②
Sure. I was born in London
③
Not really, you can do it
④
Certainly not. I’m from London
【单选题】
Can I help you with the bag?
①
No, no. I can take it myself
②
Thank you
③
Sorry, you can’t
④
No, I’m all right
【单选题】
She never married and she never went to school____________ .
①
either
②
also
③
too
④
neither
【单选题】
It takes a lot of ____ to put on a school play such as
King Lear.
①
organization
②
arrangement
③
management
④
preparation
【单选题】
19.Our school library is ________ closed for repairs.
①
shortly
②
quickly
③
temporarily
④
rapidly
【多选题】
All the students in our school ____________ in the hall to hear a lecture.
①
collected
②
gathered
③
assembled
④
doubled