义务教育阶段的民办学校,可以根据办学实际情况举行入学考试。
中小学音乐课程中的音乐创造,目的在于培养学生的______。
苏联十月革命胜利后,专门从事流浪犯罪儿童教育
1994年
中庭地白树栖鸦,______。(王建《十五夜望月寄杜郎中》)
下列属于应用心理学的是______。
“笔落惊风雨,诗成泣鬼神”说的是哪位诗人?______
某实验小组要描绘一个标有“3.8V,1W”的小灯珠RL的R-U曲线,所供选择的器材除了导线和开关外,还有以下一些器材可供选择:A.电压表V(量程5V,内阻约为5kΩ)B.直流电源E(电动势4.5V,内阻不计)C.电流表A1(量程150mA,内阻约为2Ω)D.电流表A2(量程300mA,内阻约为1Ω)E.滑动变阻器R1(阻值0~10Ω)F.滑动变阻器R2(阻值0~200Ω)(1)实验中为较准确测量、方便调节,电流表应选用_______,滑动变阻器应选用_______(填写仪器符号);(2)据实验数据,计算并描绘出了R-U的图象,如乙图所示。由图象可知,当所加电压为3.00V时,灯珠实际消耗的电功率为_______W。假设灯丝电阻R与其温度t的关系是R=k(t+273)(k为比例系数),室温为27℃,可知该灯珠正常发光时,灯丝的温度约为_______℃;(3)小灯珠的电功率P随电压U变化的图象及其伏安特性曲线可能分别是图丙中的_______。A.①和③B.①和④C.②和③D.②和④
探究式教学法不适合所有的学生。
学校实行校长负责制。
—Could you help me move the table to the teachers' office? —______.
We were all surprised when he made it clear that he______office soon.
《中华人民共和国教师法》第十三条规定
已知行列式,则λ=______.
2016年7月,我国首颗______科学实验卫星发射成功
一个懂得维修摩托车的技工,容易学会维修汽车。这体现的迁移类型是______。
1. Why do airplanes take longer to fly west than east?
It can take five hours to go west-east from New York(NY)to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon known as the jet(喷射)stream. The jet stream is a very high altitude wind which always blows from the west to the east across the Atlantic. The planes moving at a constant air speed thus go faster in the west-east direction when they are moving with the wind than in the opposite direction.
2. What would happen if the gravity on Earth was suddenly turned off?
Supposing we could magically turn off gravity. Would buildings and other structures(建筑物)float away? What happened would depend on how strongly the things were attached to the Earth. The Earth is moving at quite a speed, moving at over a thousand miles per hours. If you turn something around your head on a string(细绳), it goes around in a circle until you let go of the string. Then it flies off in a straight line. ' Switching off gravity would be like letting go of the string. Things not attached to the Earth would fly off in a straight line. People in buildings wrould suddenly
shoot
upwards at a great speed until they hit the ceiling. Most things outside would fly off into space.
设计选修课是高中英语课程改革的一个重要举措。下列各项中,关于选修课的说法,不恰当的是( )。
长江在青海省巴塘河口至四川省宜宾岷江口一段称为荆江。
简述教师成长与发展的基本途径。