根据机构的运动特点，在保养时用手摇动YJ19卷烟机喇叭嘴的曲柄连杆，检查它的磨损情况。
参考答案：对
如果我们长期不注意用眼卫生，就会使晶状体的凸度增大，形成的物像就会落在视网膜的______，形成近视眼．近视眼可以佩戴______透镜加以矫正．
----I _____to go for a walk.
-------But I_____ going shopping.
A．would like; feel like
B．feel like; feel like
C．feel like; would like
D．would like; would like
