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【单选题】
These engines______ by hand, now they______ by electricity.A.
used to be started; are started
B.
used to start; are started
C.
used to be started; start
D.
used to start; start
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【简答题】视近物时,眼的调节包括 _______、 _______ 、 _______。
【单选题】看近物时的视觉调节过程包括
A.
、晶状体变凸，眼轴会聚，瞳孔散大
B.
、晶状体变凸，眼轴会聚，瞳孔缩小
C.
、晶状体扁平，眼轴会聚，瞳孔缩小
D.
、晶状体扁平，眼轴会聚，瞳孔散大
【简答题】“ It was a 1 surprise to me. I asked him 2 he helped me. He told me that he was also fond of 3 but was afraid of cycling at 4 . He wished that people would help him at those 5 , so he helped me,” said...
【单选题】正常人眼在视近物时的视觉调节过程包括
A.
晶状体变凸,瞳孔缩小,视轴会聚
B.
晶状体变凸,瞳孔不变,视轴会聚
C.
晶状体变凸,瞳孔缩小,视轴不变
D.
晶状体不变,瞳孔缩小,视轴会聚
【简答题】He realized that he was severely inadequate in communicating with people because he wasn't even able to say, express, and explain things properly.
【简答题】视近物时,眼的调节包括 ___、 ___、 ___。
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