（）的花芽分化只形成一朵花。
A.一串红
B.丁香
C.玉兰
D.米兰
参考答案：C
She ______ as an animal trainer since 2003. [ ]
A. has worked
B. works
C. will work
D. worked
( )属持续整理形态。
A．菱形
B．旗形
C．楔形
D．三角形
E．正方形
