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问题 单项选择题

如果采用静光轮压路机碾压沥青混合料的冷热纵向接缝时，在碾压开始时，应将压路机的大部分支承在冷料层上，只以（）的轮宽压在热料上进行碾压，逐渐压向热料。

A.100～200mm

B.200～300mm

C.300～4200mm

D.400～500mm

答案

参考答案：A

单项选择题

In the United States, the first day nursery was opened in 1854. Nurseries were established in various areas during the (91) half of the 19th century; most of (92) were charitable. Both in Europe and in the U. S. , the day-nursery movement received great (93) during the First World War, when (94) of manpower caused the industrial employment of unprecedented numbers of women. In some European countries nurseries were established (95) in munitions (军火)plants, under direct government sponsorship. (96) the number of nurseries in the U.S. also rose (97) , this rise was accomplished without government aid of any kind. During the years following the First World War, (98) , Federal, State, and local governments gradually began to exercise a measure of control (99) the day nurseries by (100) them and by inspecting and regulating the conditions within the nurseries.
The (101) of the Second World War was quickly followed by an increase in the number of day nurseries in almost all countries, as women were (102) called upon to replace men in the factories. On this (103) the U. S. government immediately came to the support of the nursery schools, (104) $6,000,000 in July, 1942, for a nursery school program for the children of working mothers. Many States and local communities (105) this Federal aid. By the end of the war, in August, 1945, more than 100,000 children were being cared (106) in day-care centers receiving Federal (107) Soon afterward, the Federal government (108) cut down its expenditures for this purpose and later (109) them, causing a sharp drop in the number of nursery schools in operation. However, the expectation that most employed mothers would leave their (110) at the end of the war was only partly fulfilled.

A．by

B．after

C．of

D．for
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单项选择题

关于 * * 的说法正确的是

A．上端包绕子宫颈，下端开口于 * * 前庭前部
B．后穹隆顶端与子宫直肠凹陷贴近，后者是腹腔最低部分
C．后壁短于前壁
D． * * 壁仅由黏膜与弹力纤维构成
E．黏膜由复层鳞状上皮细胞所覆盖，有腺体
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