| By the 1820’s in the United States,
when steamboats were common on western waters, these boats were mostly powered
by engines built in the West (Pittsburgh, Cincinnati, or Louisville), and of a
distinctive western design specially suited to western needs. The first steam
engines{{U}} (21) {{/U}}practical use in England and the United States
were{{U}} (22) {{/U}}low-pressure design. This was the type first{{U}}
(23) {{/U}}by James Watt, then manufactured by the firm of Boulton and
Watt. Steam was{{U}} (24) {{/U}}in a large, double-acting vertical
cylinder, but the steam reached only a few pounds of pressure per square inch.
It was low-pressure engines of this type that{{U}} (25) {{/U}}first introduced
into the United States by Robert Fulton. He{{U}} (26) {{/U}}such a Boulton and
Watt engine from England to run the Clermont. But this type o A. communicated B. accumulated C. manipulated D. formulated [单项选择]关于肾上腺转移癌的描述，下列说法不正确的是（）
A. 肾上腺是转移癌的好发部位 B. 主要以直接扩散的方式转移到肾上腺 C. 肺癌肾上腺转移占首位 D. 转移癌常发生于双侧 E. MRI信号大多数不均匀 [判断题]鼠笼型异步电动机可以分为单笼型、双笼型和深槽型。
[单项选择]香附的功效是（）
A. 通阳散结，行气导滞 B. 散寒通阳，解毒散结，调经止痛 C. 通阳散结，疏肝解郁，宽中化痰 D. 通阳散结，燥湿化痰 E. 疏肝解郁，调经止痛，理气调中 [判断题]滚子链已标准化，分为A、B两种系列。A系列用于重载、高速或重要传动；B系列用于一般传动。
[单选题]男性，46岁。右上腹阵发性绞痛1天。查体：体温39.5°
C，血压90/50mmHg，脉搏130次/分，全身皮肤黄染，神情淡漠，右上腹深压痛，轻度肌紧张。查血白细胞20×109/L，中性粒细胞升高，胞浆内有中毒颗粒，B超示肝内、外胆管和胆囊无结石影，胆总管轻度扩张。
该病人初步诊断是
A.急性胆囊炎 B.急性胰腺炎 C.急性梗阻性化脓性胆管炎 D.胆石症 [多选题]以下属于行政强制执行方式的有（ ）
A.加处罚款或滞纳金 B.冻结存款、汇款 C.划拨存款、汇款 D.代履行 [判断题]人们一切行动和生活的前提条件是言论自由
A.正确 B.错误 [多项选择]小学五年级“求不规则物体的体积”学生需要具备的知识基础是（）
A. 长方体体积计算公式 B. 规则物体体积计算公式 C. 圆柱体体积计算公式 D. 长方形面积计算公式 [单项选择]At the end of the story, you'll find that ______.
[单项选择] 阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
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