Visual Basic中的控件分为3类,它们是标准控件、 【6】 和可插入对象。

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Visual Basic中的控件分为3类,它们是标准控件、 【6】 和可插入对象。

考点:计算机等级考试VISUALBASIC二级VISUALBASIC笔试330
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密码是操作员进入系统的通行证,它一般由电算主管设置和更改。( )

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肾病综合征治疗下列哪项不妥当

A.应用阿司匹林

B.必要时补充人体清蛋白

C.用激素治疗4周无效加用环磷酰胺

D.用激素治疗,尿蛋白减少立即减量

E.必要时应用环孢菌素A

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开浇渣属于()型保护渣。

A.发热

B.预熔

C.颗粒

D.都不是

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The United States counts its population every ten years, and each census reveals that the racial and ethnic mix is changing dramatically, so by the year 2050, the "average" American will not be descended from (1) , but the majority of U. S. residents will trace (2) ancestry to Africa, Asia, the Hispanic world, the Pacific Islands, or the Middle East. Once the United States was a microcosm of European nationalities, (3) the United States is a microcosm of the world. The United States is (4) considered a "melting pot" society by many of its residents. (5) , many people prefer the term "salad bowl." They use this (6) to describe American society. American society will soon be (7) nonwhite. "Melting pot" implies that the different ethnic groups blend together (8) one homogeneous (9) , "salad bowl" (10) that nationalities, like the ingredients in a mixed green salad, retain their cultural (11) . Earlier generations of (12) believed they had to learn English quickly not only to survive but also for (13) .
Now, many immigrant groups do not (14) the same need. Because there are many places in America (15) you can work, shop, get medical care, marry, divorce and die without knowing English. (16) , Chinatown in San Francisco and New York. Also, Los Angeles has many Vietnamese immigrants and immigrants from Mexico. (17) , many immigrant groups want their children to know their (18) culture. Many Hispanics, for instance, want their children to learn (19) English and Spanish and study the Spanish language in school. They are fighting for the (20) to bilingual education in many communities. In many communities they are in the majority.

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下列物质中不能用作消毒药品的是()。

A、过氧乙酸

B、次氯酸钠

C、氯化钠

D、氢氧化钠

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