影响原尿生成因素（） A.肾小球滤过膜面积 B.肾小球滤过膜通透性 C.有效滤过 D

核酸分子杂交技术建立所依据的原理是（）

A.核酸碱基之间氢键结合力

B.核酸碱基之间二硫键结合力

C.核酸碱基之间静电引力

D.核酸双链之间氢键结合力

E.互补序列单链核苷酸相遇时退火形成双链

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．again

B．thus

C．repeatedly

D．yet

车钩主要由（）、（）、（）和销子组成。

范某，男，68岁。三年来小便淋沥不爽，排尿无力，面色白，神气怯弱，腰膝痠软，舌质淡，脉沉细尺弱。针灸取穴应主取（）

A.足太阴脾经、足太阳膀胱经

B.足少阴肾经、足太阳膀胱经

C.足太阳膀胱经、手太阴肺经

D.足少阴肾经、手少阳三焦经

E.足少阴肾经、手太阴肺经

双杪双下昂