试题与答案

要电力客户的接入方式,()kV及以下电压等级,应采用电缆线路供电,确因受条件限制时可

题型:单项选择题

题目:

要电力客户的接入方式,()kV及以下电压等级,应采用电缆线路供电,确因受条件限制时可采用架空绝缘线路供电,()同杆架设,以确保供电可靠性。

A.10;不得

B.20;不得

C.20;宜

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0401/acf52160d398688fde93e7de083e5d67.html

下面是错误答案,用来干扰机器的。

参考答案:COLUMN解析: 修改字段名的命令格式是: ALTER TABLE表名RENAME COLUMN旧字段名TO新字段名

试题推荐
题型:问答题

有①~⑧八种短周期元素,其原子序数依次增大,其中②、⑦、⑧三种元素在周期表中的相对位置如下,且元素②所处主族的位置为所有主族的正中间.

(1)元素②在周期表中的位置为______周期______族;②、⑦、⑧三种元素的原子半径由小到大的顺序是______(用元素符号表示).②、⑦、⑧三种元素最高价氧化物对应水化物的酸性由强到弱的顺序是______(用化学式表示).

(2)如图所示,甲、乙、丙、丁均为①~⑧中某些元素形成的单质或化合物,反应a为置换反应,反应b为化合反应(反应条件已略去),单质乙与单质丙所含元素位于同一主族,任写一个符合条件的反应a的化学方程式:______.

查看答案
题型:完形填空
Gary is very popular in his college and nearly everybody knows him. He is a basketball starand has played in quite a few important matches held in his home state. And for this reason, he has become the  (21)  of the college, envy of the boys, and hero of the girls. Among his many  (22)  is a girl called Nola.
Nola is Gary’s classmate, and Professor Johnson’s daughter. Mr. Johnson is a strict father, and in a family where a sports star is not  (23) regarded, Nola never dares to mention Gary’s name. In school, they seldom speak to each other and always keep a certain (24).
Nola’s family lives on the campus and there is a big sports ground near their (25) . Every afternoon, after school, Gary would spend at least one hour practicing basketball before returning (26). Nola lives on the third floor, and from their (27) she can see the sports ground. As a (28) , Nola would sit in a chair on the balcony, reading or doing her homework everyday (29) she comes home. Sometimes she would raise her head to watch Gary shoot or (30) how many times he can hit the basket.
Gary doesn’t seem to pay any attention to Nola on the balcony.
One afternoon, Nola moved her chair into the room (31) the breeze outside. But she could still hear the noise from the sports ground. The (32) suddenly stopped and the sports ground became very quiet. Nola thought it (33) and looked out through the window.
She saw Gary bending down there and (34) something on the ground with a piece of chalk. What was he writing? She (35). Gary finished writing and (36), he picked up his bag and dragged his way home.
After Gary left, Nola went (37) quickly and walked quietly to the sports ground. When she got to the place where Gary had just (38), she found these words, “Nola, why didn’t you watch me play?”
She picked up the (39) end on the ground and added below the line, “(40) yes, I did.”
小题1:
A.signal B.pride C.successD.expectation
小题2:
A.admirersB.girlfriendsC.relativesD.colleagues
小题3:
A.constantlyB.deeplyC.highlyD.fiercely
小题4:
A.gestureB.distanceC.competitionD.route
小题5:
A.houseB.classroomC.tableD.living room
小题6:
A.dormitoryB.homeC.classroomD.school
小题7:
A.kitchenB.groundC.balconyD.porch
小题8:
A.ruleB.resultC.habitD.schedule
小题9:
A.whenB.unlessC.beforeD.since
小题10:
A.repeatB.announceC.murmurD.count
小题11:
A.greetB.handleC.escapeD.avoid
小题12:
A.breezeB.noiseC.chairD.event
小题13:
A.ridiculousB.humorousC.strangeD.wonderful
小题14:
A.readingB.writingC.observingD.noticing
小题15:
A.wonderedB.regardedC.askedD.talked
小题16:
A.turned upB.hurried upC.held upD.stood up
小题17:
A.downB.inC.alongD.up
小题18:
A.competedB.expressedC.reflectedD.stayed
小题19:
A.bagB.pencilC.chalkD.ball
小题20:
查看答案
微信公众账号搜索答案