钩藤的降血压有效成分是A．钩藤碱 B．异钩藤碱 C．去氢钩藤碱 D．去氢异钩藤碱 E

读下图，回答：

（1）写出图中字母所代表的地理事物名称。①科学考察站：A________站；B__________站其中________站内有极昼极夜现象。②大洋：C__________洋；D__________洋；E____________洋。

（2）图中有一条特殊的纬线经过，它叫__________，是_________带和____________带分界线。

（3）近年来，南极地区上空出现的_____________，会给人类环境带来极大的危害。

（4）南极大陆煤炭丰富的事实为地壳运动的_________________学说提供了有力的证据。

建设工程组织非节奏流水施工时的特点包括( )。

A．各专业工作队不能在施工段上连续作业

B．各施工过程在各施工段的流水节拍不全相等

C．相邻专业工作队的流水步距不尽相等

D．专业工作队数小于施工过程数

E．有些施工段之间可能有空闲时间

男，56岁，呕血、黑便6h，伴晕厥。既往有"乙型肝炎"史10年余。体格检查：血压80／50mmHg，脉搏110次／分。腹部触诊：脾脏肋下4cm。

确诊的首选检查是（）

A.X线钡餐检查

B.上腹部B超检查

C.上腹部CT检查

D.上腹部MRI检查

E.胃镜检查

MQ通道启动成功的条件是（）。

A、通讯链路必须可用

B、本地和远程队列管理器必须是处在运行状态

C、本地和远程的MCA必须存在

D、以上全是

Soon after his appointment as secretary-general of the United Nations in 1997, Kofi Annan lamented that he was being accused of failing to reform the world body in six weeks. "But what are you complaining about" asked the Russian ambassador. "You’ve had more time than God." Ah, Mr. Annan quipped back, "but God had one big advantage. He worked alone without a General Assembly, a Security Council and [all] the committees."

Recounting that anecdote to journalists in New York this week, Mr. Annan sought to explain why a draft declaration on UN reform and tackling world poverty, due to be endorsed by some 150 heads of state and government at a world summit in the city on September 14th-16th, had turned into such a pale shadow of the proposals that he himself had put forward in March. "With 191 member states", he sighed, "it’s not easy to get an agreement."

Most countries put the blame on the United States, in the form of its abrasive new ambassador, John Bolton, for insisting at the end of August on hundreds of last-minute amendments and a line-by-line renegotiation of a text most others had thought was almost settled. But a group of middle-income developing nations, including Pakistan, Cuba, Iran, Egypt, Syria and Venezuela, also came up with plenty of last-minute changes of their own. The risk of having no document at all, and thus nothing for the world’s leaders to come to New York for, was averted only by marathon all-night and all-weekend talks.

The 35-page final document is not wholly devoid of substance. It calls for the creation of a Peacebuilding Commission to supervise the reconstruction of countries after wars; the replacement of the discredited UN Commission on Human Rights by a supposedly tougher Human Rights Council; the recognition of a new "responsibility to protect" peoples from genocide and other atrocities when national authorities fail to take action, including, if necessary, by force; and an "early" reform of the Security Council. Although much pared down, all these proposals have at least survived.

Others have not. Either they proved so contentious that they were omitted altogether, such as the sections on disarmament and non-proliferation and the International Criminal Court, or they were watered down to little more than empty platitudes. The important section on collective security and the use of force no longer even mentions the vexed issue of pre-emptive strikes; meanwhile the section on terrorism condemns it "in all its forms and manifestations, committed by whomever, wherever and for whatever purposes", but fails to provide the clear definition the Americans wanted.

Both Mr. Annan and, more surprisingly, George Bush have nevertheless sought to put a good face on things, with Mr. Annan describing the summit document as "an important step forward" and Mr. Bush saying the UN had taken "the first steps" towards reform. Mr. Annan and Mr. Bolton are determined to go a lot further. It is now up to the General Assembly to flesh out the document’s skeleton proposals and propose new ones. But its chances of success appear slim.

Who have recently listened to the story in the first paragraph of the text（）

A. Ambassadors

B. UN officials

C. The world’s leaders

D. Reporters