《本草图经》是我国药学史上第一部由政府织编绘而成的刻板药物图谱

题型:判断题

问题:

《本草图经》是我国药学史上第一部由政府织编绘而成的刻板药物图谱

考点:历史学中国医学史中国医学史题库
题型:判断题

适筋梁,当受拉钢筋刚达到屈服时,其状态是()。

A.达到极限承载能力

B.受压边缘混凝土的压应变εc=εu(εu混凝土的极限压应变)

C.受压边缘混凝土的压应变εc≤εu

D.受压边缘混凝土的压应变εc=0.002

题型:判断题

如图所示,真空中水平放置的两个相同极板Y和Y'长为L,相距d,足够大的竖直屏与两板右侧相距b。在两板间加上可调偏转电压U,一束质量为m、带电荷量为+q的粒子(不计重力)从两板左侧中点A以初速度v0沿水平方向射入电场且能穿出。

(1)证明粒子飞出电场后的速度方向的反向延长线交于两板间的中心O点;

(2)求两板间所加偏转电压U的范围;

(3)求粒子可能到达屏上区域的长度。

题型:判断题

Pharming is a scamming practice in which malicious code is installed on a personal computer or server, misdirecting users to (1) fraudulent Web sites without their knowledge or consent. Pharming has been called "phishing without a lure".

In phishing, the perpetrator sends out legitimate- (2) looking e-malls, appearing to come from some of the Web’s most popular sites, in an effort to obtain personal and financial information from individual recipients. But in pharming, larger numbers of computer users can be (3) victimized because it is not necessary to target individuals one by one and no conscious action is required on the part of the victim. In one form of pharming attack, code sent in an e-mail modifies local host files on a personal computer. The host files convert URLs into the number strings that the computer uses to access Web sites. A computer with a compromised host file will go to the fake Web site even if a user types in the correct Internet address or clicks on an affected (4) bookmark entry. Some spyware removal programs can correct the corruption, but it frequently recurs unless the user changes browsing. (5) habits,

5()

A.habits signature

B.site

C.rages

D.address

题型:判断题

1950年8月1日,中国人民解放军炮兵领导机构成立,()任司令员。

A.陈锡联

B.刘亚楼

C.许光达

D.肖劲光

题型:判断题

在用紫外线治疗时,其照射范围包括病灶区和相应神经根区的上下肋间的疾病是()。

A.单纯疱疹

B.湿疹

C.带状疱疹

D.变应性皮肤血管炎

E.玫瑰糠疹

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