化学与人类的衣、食、住、行密切相关.下列说法正确的是( ) A.科学家用纳米线织

题型:选择题

问题:

化学与人类的衣、食、住、行密切相关.下列说法正确的是(  )

A.科学家用纳米线织出了碳纳米管布料,碳纳米管属于有机高分子材料

B.河南烩面美味营养,因为面条和瘦肉中富含蛋白质,蔬菜中富含维生素

C.郊游后的自行车经清洗后需要晾晒并在链条上涂油等,目的是防止自行车生锈

D.用石灰乳粉刷过的墙日久变硬,是因为水分的蒸发而留下固体氢氧化钙的缘故

考点:六大营养素复合材料纳米材料金属的锈蚀与防护碱的性质
题型:选择题

Motorways are, no doubt the safest roads in Britain. Mile (41) mile, vehicle for vehicle, you are much (42) likely to be killed or seriously injured than on an ordinary road. On (43) hand, if you do have a serious accident on a motorway, fatalities are much more likely to (44) than in a comparable accident (45) on the roads.
Motorways have no (46) bends,, no roundabouts or traffic lights and (47) speeds are much greater than on other roads. Though the 70 mph limit is (48) in force, it is often treated with the contempt that most drivers have for the 30 mph limit applying in built up areas in Britain. Added to this is the fact that motorway drivers seem to like traveling in groups with perhaps (49) ten metres between each vehicle. The resulting horrific pile-ups (50) vehicle stops for some reason mechanical failure, driver error and so on have become all (51) familiar through pictures in newspapers or on television. How (52) of these drivers realize that it takes a car about one hundred metres to brake to a stop (53) 70 mph Drivers also seem to think that motorway driving gives them complete protection from the changing weather. (54) wet the road, whatever the visibility in mist or fog, on they (55) at ridiculous speeds oblivious of police warnings or speed restrictions (56) their journey comes to a conclusion. Perhaps one remedy (57) this motorway madness would be better driver education. At present, learner drivers are bared (58) motorways and are thus as far as this kind of driving is (59) thrown in at the deep end. However, much more efficient policing is required, (60) it is the duty of the police not only to enforce the law but also to protect the general public from its own foolishness.

A.another

B.other

C.one

D.the other

题型:选择题

处理工作涉及许多常规性的职责,其中包括出席仪式和典礼,参加谈判,以及处理那些把组织及其环境联系起来的只有处在高管地位的人才能得到的信息。会见来访的要人、赠送礼物、主持晚宴等都是高管分内的工作。一项对小公司总裁的研究发现,只要有一个业务员没来,常常就需要总裁去顶替。
这段话主要支持了这样的一种观点( )。

A.小公司只要有一个业务员没来,常常就需要总裁去顶替
B.高管处理工作事物时不能事无巨细,需要确定工作范围,明确分工
C.会见来访的要人、赠送礼物、主持晚宴等都是高管分内的工作
D.处理工作涉及许多常规性的职责,其中包括出席仪式和典礼,参加谈判,以及处理那些把组织及其环境联系起来的只有处在高管地位的人才能得到的信息

题型:选择题

期货公司或其营业部有下列()情形之一的,中国证监会及其派出机构可以依据《期货交易管理条例》第59条的规定,采取相应的监管措施。

A.存在可能影响财务稳健状况的纠纷、仲裁、诉讼

B.期货结算业务规则不健全或者未有效执行,可能损害其他期货公司或者客户的合法权益

C.交易、结算或者财务系统存在重大缺陷的,可能造成有关数据失真或者损害客户合法权益

D.公司治理不健全或者未有效执行,部门或者岗位设置存在较大缺陷,关键业务岗位或者人员缺位或者未履行应有职责等情况,可能影响期货公司持续经营

题型:选择题

产生式系统包含的基本组成()

A、知识库、规则库和数据库

B、规则库、模型库和控制器

C、知识库、规则库和模型库

D、规则库、数据库和控制器

题型:选择题

筏形基础混凝土应一次浇筑完成,若不能整体浇筑完成,则应留施工缝,施工缝留设位置:当平行于次粱长度方向浇筑时,应留在()跨度范围内。

A.主梁中部1/3

B.次梁中部1/3

C.次梁中部1/4

D.主梁中部1/4

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