下面四个选项中,哪一项能由右边给定的图形的规律演变而成()
A.
B.
C.
D.
参考答案:C
It was such a ________to hear that her son was found safe and sound in the forest.
A.ease
B.assistance
C.comfort
D.relief
对青霉素G最敏感的病原体是()
A.立克次体
B.钩端螺旋体
C.衣原体
D.支原体
E.真菌