Windows2000是一个窗口系统,对用户来说,它是不可同时运行多个程序的一个集成化应用环境。( )
参考答案:错
The building project ______ next year is, I think, not easy ______ in time. [ ]
A. being carried out; to complete
B. carried out; to be completed
C. to be carried out; to complete
D. to be carried out; to be completed
目前认为需要常规进行术后化疗的肿瘤是()。
A.脂肪肉瘤
B.滑膜肉瘤
C.尤文肉瘤
D.软组织恶性纤维组织细胞瘤
E.软骨肉瘤