油浸式变压器油枕的作用是()。A、使油箱、套管内充满油 B、减缓油的受潮和氧化 C、

题型:单项选择题

问题:

油浸式变压器油枕的作用是()。

A、使油箱、套管内充满油

B、减缓油的受潮和氧化

C、安装呼吸器等附件

D、经上各项和用

考点:高压电工考试高压电工考试题库
题型:单项选择题

写反义词。

批评—— (     )   成功——(     )

凉爽—— (     )   喜欢——(     )

题型:单项选择题
已知x,y∈R+,且2x+y=1,求
1
x
+
1
y
的最小值.
题型:单项选择题

如图所示是物体的运动图象,能表示该物体做匀加速直线运动的图象是(  )

A.

B.

C.

D.

题型:单项选择题

与玻璃体液化有关的是()

A.老年人

B.高度近视

C.无晶状体眼

D.视网膜炎症

E.眼外伤

题型:单项选择题

Bob and Linda are tired of the freezing cold days in Glenmont, so they are considering retiring to either Sunny Glen or Buena Vista. Bob points out that Sunny Glen has an average annual temperature 8 degrees Fahrenheit higher than that of Buena Vista. Linda insists, however, that Buena Vista would be the better choice.
Which of the following, if true, best accounts for Linda’s preference for Buena Vista ?()

A. Different people experience cold in different ways, so what seems cold to Linda may seem pleasantly cool to Bob.

B. Sunny Glen has a somewhat higher risk of hurricanes than does Glenmont.

C. Buena Vista has a range of cultural offerings, including an opera, a ballet, and three jazz clubs.

D. Living in a place that gets very hot, such as Sunny Glen, can have as many health risks as living in a place that gets very cold.

E. While Sunny Glen is warmer than Buena Vista in the summer, it also has more freezing cold days in the winter.

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