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问题 选择题

孟德尔发现了两大遗传定律，他获得成功的原因包括：

①正确选用实验材料；②采用从一对到多对相对性状的研究方法；③应用统计学方法分析实验结果；④设计测交实验进行验证；⑤找出配子形成时染色体的变化规律。其中正确的是 [ ]

A．①②③④

B．①②③⑤

C．①③④⑤

D．②③④⑤

答案

答案：B

单项选择题

若某企业的会计科目为三级明细，某科目既有一级科目，又有二级和三级科目，在录入期初余额时( )。

A．只需输入一级科目余额

B．只需输入三级科目余额

C．输入哪一个科目余额都可以

D．三者都需输入
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单项选择题

In (85) software, one question of near-universal interest is how rapidly Windows NT, which began shipping last summer, will be (86) in the marketplace and for what uses. For the most part, observers are (87) about the operating system’s long term prospects, but expect it to remain on (88) rather than desktops during 1994, saying that it won’t become a mainstream product until (89) PCs typically have 16 to 24 MB of RAM, which is unlikely to happen next year.

（85）是（）

A.applications

B.accepted

C.clients

D.enthusiastic

E.servers

F.desktop

G.systems

H.replaced
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