列车处于运行状态时,可以实现()模式的转换。
A.“CM”向“ATO”
B.“ATO”向“OFF”
C.“CM”向“RMR”
D.“WM”向“RMR”
参考答案:A
用所给动词的适当形式填空。
1. David often ___________ (help) me with my English.
2. Can you ___________ (put) an egg on your head?
3. Look, the farmers ___________ (pick) apples on the trees.
4. Nancy ___________ (play) the piano at the concert tomorrow.
5. The children went to the farm yesterday. They ___________ (have) fun there.
双眼注视远处目标,调节处于松弛状态,注视近处目标时则需要调节,同时为保持双眼单视,双眼还需要内转,称为()
A.眼的调节
B.眼的集合
C.屈光
D.视野
E.视功能