毛果芸香碱使睫状肌______、悬韧带______、晶状体______。
参考答案:收缩;松弛;变凸
The driver was at _____ loss when _____word came that he was forbidden to drive for speeding.[ ]
A. a ; the
B. / ; /
C. the ; the
D. a ; /
甲地和乙地相距500公里时,如果在1厘米等于50公里比例表的地图上,这两地之间的距离是多少厘米
A.5
B.10
C.15
D.100