可激动骨骼肌N2受体的药物是（）
A.毛果芸香碱
B.新斯的明
C.毒扁豆碱
D.琥珀胆碱
E.筒箭毒碱
参考答案：B
On the way back home from the ball,she suddenly found her necklace ____ .[ ]
A.missed
B.losing
C.gone
D.be stolen
姐姐一定比弟弟长得高．______．
