当单板超负荷时，可以发起单板闭塞操作，禁止新业务接入到该单板。支持闭塞操作的单板有（

单词拼写 (共5小题; 每小题1分,满分5分)

小题1:The cell phone s________ was poor, and my calls kept getting cut off.

小题2:I would a_________ it if you could come and help me tidy up the garden.

小题3:P________, I think he is a very good man, though you may not agree.

小题4:It is o_________ that he has been at home because he phoned us with the home telephone.

小题5:He c________ me $15 for repairing the watch, which was too much.

胰岛细胞瘤的CT特点为（）

A.增强扫描动脉期明显结节样强化病灶

B.延迟扫描明显结节样强化病灶

C.延迟扫描明显环样强化灶

D.增强扫描静脉期低密度结节灶

E.增强扫描动脉期低密度结节灶

急性肾小球肾炎的诊断根据中，哪个是关键

A．蛋白尿及透明管型尿
B．高血压
C．尿少
D．血尿及红细胞管型尿

股骨头缺血性坏死典型的骨显像表现为（）。

A."楔形"切迹

B.未看到明显改变

C."炸面圈"样改变

D.股骨头呈明显放射性分布浓聚区

E.以上都不是

属于延长动作电位时程药的是（）

A、奎尼丁

B、美托洛尔

C、胺磺酮

D、维拉帕米

E、地高辛