题型：名词解释 一列简谐横波沿x轴正方向传播，图甲是t＝3 s时的波形图，图乙是波中某质点P振动位移随时间变化的振动图线(两图用同一时间起点)，下列判断正确的是A．质点P在t＝3 s时正向y轴负方向振动B．质点P在t＝3 s时的速度为零C．质点P的平衡位置可能是x＝0D．质点P的平衡位置可能是x＝2 m 查看答案
题型：名词解释 American people like to “Thank you” when others help them or say to them. Many Chinese people do so, . It is a very . You must say “Thank you” when someone passes you something on the table, when someone the door open for you, when someone says you do your work , or you buy a nice thing or your city is “Excuse me” is another sentence（句子）they often say. When you hear someone say “Excuse me” you, you know he wants to pass you without touching（接触）you. If you want others, say “Excuse me” first, and then begin talking. Let’s “Thank you: and “Excuse me” from now. 小题1:A．speakB．sayC．tellD．talk小题2:A．something goodB．anything goodC．good somethingD．good anything小题3:A．alsoB．soC．eitherD．too小题4:A．healthy habitB．good habitC．good lifestyleD．healthy lifestyle小题5:A．keepingB．keepC．keepsD．kept小题6:A．hardlyB．goodC．wellD．nice小题7:A．beautifulB．dirty(脏的)C．crowded(拥挤的)D．boring小题8:A．next fromB．across toC．in frontD．behind小题9:A．breakB．to breakC．breakingD．breaks小题10:A．sayB．to sayC．sayingD．said 查看答案
题型：名词解释 下图是民国初年东部沿海及长江下游民族工业分布图：从图中可以看出，当时长江南岸以纺织工业和食品工业为主，回答：（1）民国初年，民族工业的发展跟当时的国际、国内形势有何关系？结合史实叙述之。 （2）综观当时的民族工业分布情况，长江下游是民族工业比较集中的地区，纺织业和面粉业发达。请分析形成这一局面的具体原因。 （3）当时苏南和苏北出现了哪些发展实业的有识之士，试评价他们的救国主张。 查看答案
