【单选题】附合导线的转折角,一般用( )法进行观测。
【单选题】__________ with the matches. It's dangerous. [ ]
A.
Do let not children play
B.
Not to let children play
C.
Don't let children play
D.
Don't let children playing
【单选题】附合导线的转折角,一般用()法进行观测。
【单选题】—Let's have hamburgers for lunch. —______. [ ]
【单选题】Let's water the plants. [ ]
【单选题】附合导线的转折角,一般用()法进行观测。
【单选题】把一些树木从这一绿地搬迁到另—绿地称为( )