下列探测器中属于接触式探测器的是＿。
A.感烟式探测器
B.感光式探测器
C.图象式探测器
D.光束式探测器
参考答案：A
—Lucy and Lily,Tree Planting Day is coming. How about ____ tomorrow?
—Sounds great. We should do that in old clothes. [ ]
A. going planting
B. going to plant
C. going and planting
D. planting
We should let more young parents and their children can enjoy scientific early education .
A．provide more young parents and their children to enjoy early education
B．provide more young parents and their children to enjoy early education and scientific
C．provide young parents and their children enjoy more scientific early education
D．provide young parents and their children with more early education services
