The number of students who took part in the competition last week _____ more than 1500.

[      ]

A. reach

B. were

C. is

D. was

女，23岁。车祸造成小腿中上段皮肤裂伤，短缩，成角畸形并有骨外露。

物理学检查后，还要作哪项最必要的检查（）

A.右小腿中上1／3为中心的包括膝关节在内的X线正侧位平片

B.CT片

C.血常规检查

D.电生理检查

E.右小腿全长X线正侧位平片