掘进工作面探煤厚的点距,应控制在()米。A.5--10 B.10--20 C.20-

题型:单项选择题

问题:

掘进工作面探煤厚的点距,应控制在()米。

A.5--10

B.10--20

C.20--30

D.30—50

考点:煤矿探放水工煤矿探放水工题库
题型:单项选择题

少数民族 * * 北魏统一黄河流域,可以说是一个胜利者,但是为什么孝文帝不坚持用自己民族的文化(鲜卑文化)来统治中国北方,而一定要坚持汉化措施呢?

                                                                                                                   

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在施工阶段,监理单位应对施工现场安全生产情况进行( ),对发现的各类安全事故隐患,应书面通知施工单位,并督促其立即整改。

A.巡视检查

B.旁站监督

C.跟踪检查

D.平行检查

题型:单项选择题

—My sister is very upset today.

—It’s your fault .You           the bad news to her yesterday.

A.should tell

B.should have told

C.shouldn’t have told

D.must tell

题型:单项选择题

The World Trade Organization came into being in 1995. It is the successor (后继) to the General Agreement (协议) on Tariffs (关税) and Trade (GATT) established in the wake of (作为……的后果) the Second World War.
The multilateral (多边的) trading system was developed through a series of trade negotiations or rounds. The first rounds dealt mainly with tariff reductions but later negotiations (谈判) included other areas such as anti-dumping (反倾销) and non-tariff measures. The latest round, the 1986-1994 Uruguay Round, led to the WTO’s creation.
The negotiations did not end there. Some continued after the end of the Uruguay Round. In February 1997 agreement was reached on telecommunications (电信) services, with 69 governments agreeing to wide-ranging liberation measures that went beyond those agreed in Uruguay Round.
In the same year 40 governments concluded (缔结) negotiations for tariff-free trade in information technology products, and 70 members concluded a financial services deal covering more than 95% of trade in banking, insurance, securities and financial information.
At the May 1998 ministerial meeting in Geneva, WTO members agreed to study trade issues arising from global electronic commerce.
The next ministerial conference is due to be held in Seattle of the United States in late 1999. In 2000, new talks are due to start on agriculture and services, and possibly a range of other issues.
WTO was (46) in 1995, the original organization of which was (47) . A series of trade negotiations resulted in (48) . The creation of WTO was made in (49) .
Negotiations for tariff-free trade were reached in (50) products in 1997.

题型:单项选择题

抗冻混凝土应进行抗冻性能试验,抗渗混凝土应进行()。

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