【单选题】对于蜗杆传动,为了提高效率,在一定限度内可采用( )。
【简答题】to my disappointment, the manager's plan, promote, the new products, at all To my disappointment, the manager's plan of promoting the new products doesn't ______ at all.
【单选题】对于传递动力的蜗杆传动,为了提高传动效率,在一定限度内可以采用()。
【单选题】When do people start to shake hands?
C.
The First Industrial Revolution
D.
The Second Industrial Revolution
【单选题】When do people start to plan for the Championships?
A.
After the first snow falls in Colorado.
B.
Once they submit their applications.
C.
Before their sculptures are sketched.
D.
As soon as the judges have chosen the teams.
【单选题】对传递动力的蜗杆传动,为了提高效率,在一定限度内可以采用 。
【单选题】When do people start to shake hands?
C.
The First Industrial Revolution.
【单选题】蜗杆传动,为了提高传动效率,在一定限度内可采用:
【单选题】When do people usually start smoking?
A.
when they are young adults (e.g., ages 20-29)
B.
when they are older teens (e.g., ages 17-19)
C.
when they are young teens (e.g., ages 13-15)