“急性化脓性骨髓炎”最好发于()
A．股骨
B．尺骨
C．胫骨
D．跟骨
E．桡骨
参考答案：C
When look _______ into the problem, we find the difficulties greater than we have expected.
A. close
B. closely
C. closer
D. closing
1998年我国国内生产总值比1995年大约增加了（）。
A.25%
B.30%
C.35%
D.40%
