题目内容
塑料门窗安装时，应先采用直径为φ3.2的钻头钻孔，然后将十字槽盘端头自攻M4×20拧入，严禁直接锤击钉入。( )
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Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. Children needed to learn arithmetic when ______.
对于全玻璃门安装，在玻璃板裁割后，应当将其四周作倒角处理，倒角宽度为5mm，若在现场自行倒角，应手握细砂轮块作缓慢细磨操作，防止崩边崩角。( )
体育的意义有哪些
In the United States the first day nursery was opened in 1854. Nurseries were established in various areas during the (31) half of the 19th century; most of (32) were charitable. Both in Europe and in the U. S. , the day-nursery movement received great (33) during the First World War, when (34) of manpower caused the industrial employment of unprecedented numbers of women. In some European countries nurseries were established even in munitions plants, under direct government (35) . Although the number of nurseries in the U. S. also rose (36) , this rise was accomplished without government aid of any kind. During the years following the First World War, (37) , Federal, State, and local governments gradually began to (38) a measure of control in the day nurseries, chiefly by (39) them and by inspecting and regulating the conditions within the nurseries. The (40) of the Second World War was quickly followed by an increase in the number of day nurseries in almost all countries, as women were again (41) to replace men in the factories. On this (42) the U.S. government immediately came to the support of the nursery schools, (43) $ 6,000,000 in July, 1942, for a nursery-school program for the children of working mothers. Many states and local communities (44) this Federal aid. By the end of the War, in August, 1945, more than 100, 000 children were being cared (45) in daycare centers receiving Federal (46) . Soon afterward, the Federal government drastically (47) its expenditures for this purpose and later (48) them, causing a sharp drop in the number of nursery schools in operation. However, the expectation (49) most employed mothers would leave their jobs at the end of the War was only partly (50) .
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