【单选题】进行拐角轮廓切削时,为加工出尖角可以 ________ 。
【单选题】As oil pipe line connections were broken, _____ quantity of oil was caused to spill onto the wharf and into the dock water.
【单选题】热继电器的常闭触点应接在( )中,以对电路起保护作用。
【单选题】The preorder traversal sequence of a binary tree is abdgcefh, the inorder traversal sequence of a binary tree is dgbaechf, the postorder traversal sequence of a binary tree is ____.
【单选题】The equipment required to remove an on-deck oil spill on a barge transfering oil must either be carried on board or ______.
B.
available by contract with the shore facility
C.
kept at the shoreside hose connection during transfer
D.
kept in a protected shoreside location readily accessible
【单选题】The Sydney Harbor oil spill was the result of a__________
A.
deliberate act of sabotage
B.
ship refueling in the harbor
C.
tanker pumping oil into the sea
D.
collision between two oil tankers
【单选题】The Gulf oil spill is different from any other oil catastrophe in that______.
A.
it involves a world-renowned firm
B.
it has a limited shoreline impact
C.
the surface of the ocean wasn't affected
D.
the oil was released into deep seas
【单选题】男性,25岁。病人主诉右下腹剧烈疼痛,腹痛开始于脐周,然后转移至右下腹。体检示:体温39.1°C,脉搏113次/分钟,血 120/85mmHg右下腹压痛、肌紧张、反跳痛、肠鸣音减弱;腰大肌试验阳性。实验室检查:WBC12.5 X 109/L,中性粒细胞比例0.82。 6.若该病人行手术治疗后,为预瞎术后肠粘连的最关键措施为
【单选题】What is the main idea of the news?
A.
People suffering from the oil spill will be compensated by BP.
B.
BP oil spill has brought a serious natural disaster in the Gulf.
C.
BP has already paid $700 million since the start of the disaster.
D.
The fund to help victims of BP oil spill plans to pay claims quickly.
【简答题】In the Exxon Valdez oil spill about______kilometer of coastline was polluted.