相比于蒸汽轮机,以下哪个关于燃气轮机的特点的描述是错误的?()
A、工作压力低
B、工作温度高
C、级数少
D、排气温度低
参考答案:D
多发性骨髓瘤的X线表现中,下列哪项不正确
A.约10%的病人,X线表现正常
B.多发、“穿凿样”骨质破坏以颅骨最常见最典型
C.常合并广泛骨质疏松
D.常合并骨质硬化
E.四肢短管状骨少见
To our anger, many poverty-stricken counties build luxurious office buildings instead of _______ money to improve the miserable conditions of local schools.
A.declaring
B.divorcing
C.distributing
D.dragging