未知题型 The word 'sinister' (Line 1, ParA.4) most probably means ______.A.minister.B.evil.C.beneficial.D.righteous.

未知题型 Toward Scoble's leaving and his blog, the writer's attitude can be said to be ______.A.objectivE.B.supportivE.C.biaseD.D.apprehensivE.

未知题型 Which word can take place of 'surreal' (Line 1, ParA.3; Line 5, ParA.4) in the passage?D.MiserablE.

未知题型 依照我国《担保法》，在质押生效后，质物灭失的风险损失由谁承担？（）。

单项选择题 图示电路，利用电源等效变换，计算ＡＢ间短路时的电流Ｉ＝？ A  A、 B、 C、 D、