生牡蛎除能平肝潜阳外，又能( )
A．淡味 B．苦味 C．酸味 D．咸味 E．辛味
参考答案：B
The talented boy _________ write lyrics when he was at the age of ten. [ ]
A. may
B. could
C. must
下列属于子叶出土型的作物是（）。
A.水稻
B.玉米
C.小麦
D.小葱
