内生性软骨瘤的治疗方案应选择
A．刮除植入松质骨B．截肢术C．肿瘤段切除D．必要时可行人工关节置换手术E．放疗、化疗、手术相结合
参考答案：A
—Susan, do you like my skirt?
—Yes, it is very _____. How much does it ______?
A．beautiful; cost
B．beautifully; cost
C．beauty ; spend
D．beautifully ; take.
所给四幅图中，能够正确表示地球自转方向的是（）
A.A
B.B
C.C
D.D
