题目内容

有机物的存在会影响消毒效果,原因不包括()。

A. 有机物可能与消毒剂发生反应
B. 有机物可作为屏障阻挡消毒剂对病原体的作用
C. 上述二原因均有
D. 有机物可促进病原体的增殖

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剪刀撑、横向斜撑搭设应随立杆、纵向和横向水平杆等同步搭设,各底层斜杆下端均必须支承在垫块或垫板上。()

A. 正确
B. 错误

在施工地段因施工造成既有设备发生损坏时,()应及时组织抢修,设备管理部门应积极配合,尽快恢复正常使用。

A. 建设单位
B. 设备管理单位
C. 施工单位
D. 监理单位

From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first 1 , they were like newborn children, unable to use this 2 tool. Yet once language developed, the possibilities for human kind’s future 3 and cultural growth increased. Many linguists believe that evolution is 4 for our ability to produce and use language. They 5 that our highly evolved brain provides us 6 an innate language ability not found in lower 7 . Proponents of this innateness theory say that our 8 for language is inborn, but that language itself develops gradually, 9 a function of the growth of the brain during childhood. Therefore there are critical 10 times for language development. Current 11 of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. 12 , more and more schools are discovering that foreign languages are best taught in 13 grades. Young children often can learn several languages by being 14 to them, while adults have a much harder time learning another language once the 15 of their first language have become firmly fixed. 16 some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been 17 from other human beings do not possess language. This demonstrates that 18 with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language 19 than any innate capacities. These theorists view language as imitative, learned behavior. 20 , children learn language from their parents by imitating them. Parents gradually shape their child's language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones. 请在16处填上正确答案()

Although
B. Whether
C. Since
D. Whe

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