[单项选择]封油过滤器堵塞，油压阻力损失太大，会造成（）
A. 封油箱液位上升
B. 封油压力下降
C. 封油温度上升
D. 封油温度下降

[多项选择]男，16岁。与同学在操场打球，突然下起大雨，第二天上学感到上呼吸道疼痛，干咳、伴少量黏痰，痰量逐渐增多、咳嗽症状加剧，偶可痰中带血、胸闷、气急。到医院检查，两肺呼吸音粗糙，可闻及散在干、湿性啰音。实验室检查：外周血白细胞计数和分类无明显改变。该病首选的营养治疗是（）
A. 高能量、高碳水化合物、高蛋白
B. 高能量、高蛋白、足量矿物质
C. 高能量、高碳水化合物、给予开胃食品
D. 低能量、高蛋白、低脂肪
E. 低能量、低碳水化合物、高蛋白

[单项选择]Woodrow Wilson was referring to the liberal idea of the economic market when he said that the free enterprise system is the most efficient economic system. Maximum freedom means maximum productiveness; our "openness" is to be the measure of our stability. Fascination with this ideal has made Americans defy the "Old World" categories of settled possessiveness versus unsettling deprivation, the cupidity of retention versus the cupidity of seizure, a "status quo" defended or attacked. The United States, it was believed, had no status quo ante. Our only "station" was the turning of a stationary wheel, spinning faster and faster. We did not base our system on property but opportunity—which meant we based it not on stability but on mobility. The more things changed, that is, the more rapidly the wheel turned, the steadier we would be. The conventional picture of class polities is composed of the Haves, who want a stability to keep what they have, and the Have-nots, who want a touch of instab
A. began a tradition of presidential proclamations on economics
B. perpetuated traditional legends about America
C. revealed the prejudices of a man born wealthy
D. foreshadowed the stock market crash of 1929

[判断题]高音谱号上加一线唱高音la
A.正确
B.错误

[单选题] 在一般环境下，隧道内接触网绝缘的AT保护线距接地体的静态间隙困难值为（ ）。
A.50mm；
B.75mm；
C.160mm；
D.200mm。