麦角新碱不用于催产和引产的原因是A．作用较弱B．对子宫体和颈的兴奋作用无明显差异C．

黏合剂

A．羧甲基淀粉钠
B．乳糖
C．蒸馏水
D．硬脂酸镁
E．羟丙甲纤维素

树状管网水力的计算过程是______。

A．选取从水厂到管网控制点的计算管线，计算各管段流量，确定管径，计算水头损失，从控制点处的最小服务水头计算各节点水压

B．计算各支线各管段流量，按每一支线的平均水力坡度确定该支线各管段管径

C．计算水厂水泵扬程和水塔高度

D．计算水厂水泵扬程

In the following essay, each blank has four choices. Choose the best answer and write-down on the answer sheet.

Microwave communication uses high-frequency (29) waves that travel in straightlines through the air. Because the waves cannot (30) with the curvature of the earth, they can be (31) only over short distance. Thus, microwave is a good (32) for sending data between buildings in a city or on a large college campus. For longer distances, the waves must be relayed by means of "dishes" or (33) . These can be installed on towers, highbuildings, and mountain tops.

30（）

A.reflex 

B.distort 

C.bend 

D.absorb

李有才是作家（）笔下的人物形象。

基本权利和义务