()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