在脑分水岭梗死的分型中,皮质型包括() A.皮质前型 B.皮质后型 C.皮质上型 D

题型:多项选择题

问题:

在脑分水岭梗死的分型中,皮质型包括()

A.皮质前型

B.皮质后型

C.皮质上型

D.皮质下型

考点:神经内科神经系统常见病神经系统常见病题库
题型:多项选择题

在家庭电路中,用______来测量所消耗的电能.正确使用试电笔来辨别火线和零线时,若试电笔的氖管发光,表明笔尖接触的是______.我们家里的用电器大多是______联的(选填“串”或“并”).一般来说,家用电冰箱工作时的电流约为1A,或表示为______mA.

题型:多项选择题

光明磊落是做人做事的重要品德,其主要表现是()。

A.做人做事没有私心,胸怀坦白,行为正派

B.把社会、企业和集体利益放在首位,办事公道

C.言行一致,表里如一,讲实话,办实事

D.善于团结和帮助同志,形成团结和谐的集体

题型:多项选择题

德国科学家伦琴在哪一年发现了X线()

A.1885

B.1895

C.1886

D.1896

E.1905

题型:多项选择题

A total of 4.6 million digital televisions have been sold, and the sales of HDTV sets have quadrupled since last year. Consumers have bought HDTVs to play their DVDs and to have clearer pictures and wide screens. Only a small percentage of the people who have purchased HDTVs, however, have actually hooked their TVs up to receive high-definition television digital signals. Perhaps television viewers are having trouble keeping up with the changes in technology. Even the manufacturers of HDTVs, like Mitsubishi, Thomson Multimedia, Sony, and Samsung seem to have a tough time learning how to make their sets work with the various digital TV formats because little standardization has been required or implemented in the industry.

Some of the HDTVs weigh over 200 lbs., and a variety of retailers offer a delivery service to the buyer’s home to help install the heavy sets. This is known as a white-glove service and usually comes with an extra fee. After HDTV purchasers get their sets home and hook them up, they will still need to work to get the digital signals to their systems. Most of the industry’s cable providers do not yet offer high~definition programing, and only about 15% of commercial television stations have switched over to even the lowest improved digital pictures. Worse yet, viewers may need to install antenna before they can even get the digital signals to their new HDTV sets. Another frustration for home-theater seekers is that the current HDTV sets allow owners only to watch high-definition programs, not to record them.

A majority of HDTV consumers could not enjoy high-quality digital pictures because ().

A. they did not tune in to the right channel

B. they did not install the system

C. the market retailers created the confusion on purpose

D. the manufacturers did not have a uniform standard for their sets

题型:多项选择题

我国南方地下多发育较为完整的地下河系,北方地下多为()、()和少量溶洞。

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