【判断题】发动机活塞环中油环的主要作用是密封作用。
【判断题】肺的导气部是指从主支气管到细支气管之间的部分,呼吸部是指从呼吸性细支气管到肺泡之间的部分
【单选题】When introducing how to operate the machine, Deng Ling said:
A.
First you should....then
B.
You don’t know how to operate it?
C.
It’s easy.You can’t do it?
【单选题】When Deng Ling had to leave for the meeting, she said_________.
B.
I’m going to have to run. See you later.
C.
It’s been fun talking to you.
【判断题】肺的导气部是指从主支气管到细支气管之间的部分,呼吸部是指从呼吸性细支气管到肺泡之间的部分。( )
【简答题】肺的导气部是指从( )到( )之间的部分。
【单选题】When Deng Ling woke Mary up and said:
A.
Be careful! Take the bag.
B.
Hurry up! Take the bag.
C.
Take it easy! Take the bag.
【单选题】活塞环分为气环和油环,其中油环的主要作用是 。
【单选题】When Li Ming introduced Deng Ling to Mary, he said________.
A.
I’d like you to meet my friend Deng Ling.
B.
Please allow me to introduce my friend Deng Ling to you.
C.
Come to meet Deng Ling.