保证贲门周围血管离断术完全性和彻底性的关键在于结扎和切断以下哪支血管（） A.胃短静

Corzine’s Downfall

The collapse this week of the broker-dealer MF Global and the due punishment of its chief executive Jon Corzine, who resigned Friday, have been and will be put to many political and rhetorical purposes. MF Global’s bankruptcy has been called, possibly, the first domino in a potential collapse of the European banking system; in this rendering, it’s a rough analog to the failure, in the spring of 2008, of Bear Srearns, which warned the chaos of autumn. It might well be cast as a stimulus for more government regulation, or smarter regulation; to some, it might even be a case study in overregulation. Every rationale for regulation seems to contain, as yang to its yin, an argument that regulation is actually to blame.
Corzine’s downfall is an update on Icarus, all illustration of arrogance. It reminds us that leverage kills, that it is dangerous to pick up nickels in front of a steamroller, that risk is risky, that pigs get fat while hogs get slaughtered. It complicates the Democrats’ hopes of controlling anti-Wall Street fervor in the Presidential election, because Corzine has been one of Barack Obama’s most generous supporters-a possible future Treasury Secretary. The Republicans will not soon let this one go.
It certainly further stains the reputation of Goldman Sachs. Corzine, a former C.E.O. of Goldman, took over a company partially owned by the firm of another ex-Goldmanite, Christopher Flowers, and managed, in a year and a half, to destroy it, in part while resisting oversight from a government regulator. That regulator comes from the Commodity Futures Trading Commission, whose chairman, Gary Gensle, is also a Goldman alumnus.
It further damages the perception, or myth, that a becoming-a-partner at Goldman Sachs indicates brilliance, or insures success or a lifetime inclusion in the vampire-squid-piracy, although you can find whisperings of a conspiracy theory that Goldman planted Corzine at MF Global in order to destroy it—a notion that is almost as deceiving as it is ridiculous.
Corzane’s collapse is also an occasion for taking-pleasure-in-others’-suffering. It is an occasion for those among Occupy Wall Street’s 99 per cent, who’d be ready to pitchfork him to pieces. It is also an occasion for the tiny cowering minority, who may resent Goldman for its perceived arrogance or cunning, or who may question the conceited folly and civic harm of Corzine’s spending over a hundred million of his own money to get elected to public office. The sentiment, among his peers, was that Corzine wasn’t so great a trader to begin with. And the sentiment was also that in the years since he had left Goldman, his skills, such as they were, had got rusty or outdated.
It is ironic that Corzine blundered by, and is being criticized for, among other things, betting too unbalancedly on Europe. That is, MF Global was banking on the hope that Portugal, Ireland, Italy, and Greece (whose bonds are collectively known as PIIGS) would not default on their debts by the end of the year. It might have turned out to be a good bet, were it not for the fact that it was made sneakily with money that was borrowed and perhaps even effectively stolen-or for the fact that he basically bet the firm, and the farm. Goldman Sachs, meanwhile, has been criticized, since the housing meltdown of 2008, for having profited from bets against the housing market—for shorting crappy derivatives based on mortgages. That was a good bet, except that Goldman made it while dumping those crappy derivatives on its unwitting clients.

The primary purpose of the passage is to ______.
A. analyze the aftermath of Corzine’s downfall
B. challenge the control of Corzine’s oversight
C. criticize the fault of Corzine’s professional job
D. expose the injustice of Corzine’s global policy

某灯泡上标有“PZ220-40”的字样，“PZ”表示普通白炽灯，它的额定功率是______W，正常发光时灯丝的电阻是______Ω、工作电流是______A．

视网膜的神经节细胞纤维哪部分经视交叉进入对侧视束（）

A.颞侧

B.鼻侧

C.上半部

D.下半部

E.全部

关于暖身活动，下列哪些说法是不正确的。（）

A.暖身活动不要求教师和学生有过多关于自身隐私的暴露

B.暖身活动要求学生对活动进行讨论

C.一般的暖身活动时间是20-30分钟

D.因此暖身活动主要用于团体的主题活动之前

一超级市场失窃，现场警察正在询问三位可疑的顾客。已知这三个人中有一个人是小偷，他讲的全部都是假话；有一个人是目击证人，说的话真真假假；还有一个人讲的全都是真话，是个好人。警察问这三个人的职业，甲的回答是：我是教师，乙是售货员，丙是医生；乙的回答是：我是公司销售经理，丙是公务员，至于甲，如果你们问他，他肯定回答他是教师；丙的回答是：我是公务员，甲是医生，乙是售货员。
根据以上论述，三个人中哪位是说假话的小偷( )

A．甲
B．乙
C．丙
D．都不是