1 The stident was running to move the bag of rice ( )he heard th sound of a bike.2 What was your father doing ()your mother was cooking in the kitchen.第一题为什么用when不用while.第二题为什么用while 不用when?

1 The stident was running to move the bag of rice ( )he heard th sound of a bike.2 What was your father doing ()your mother was cooking in the kitchen.第一题为什么用when不用while.第二题为什么用while 不用when? 化学文献翻译 20分一段~第二3 Results and discussion3.1 Synthesis and characterization An outline of the synthesis of the Ru(II) complexes 1 and 2 with the new PyIP ligand is presented in scheme 1. The ligand PyIP was prepared through conde 7.When the injured _______ to the hospital ,they came to ________.A was rushed ; life B.were ru为什么要选B .A was rushed ; life B.were rushed ; life C.rushed ; lives D.were rushed ; lives 1RU和1U差别 判断对否：I asked him who is that boy in the playground.qing peng duan ru xia:I asked him who is that boy in the playgound.how about: I asked him who was thatboy in the playgound? 英语翻译never thought i feel this way but i almost lost my way i was blind without a trace I always had trust him being myself but suddenly i quote for nothing i was walking in the air i was searching everywhere for a guidance for a plan i was ru 求教几道英语选择题1.A large fish was slowly swimming through the water,its tail __ back and forth likethe pendulum of a clock.A) swung B) swinging C) was swung D) was swinging2.The cells were designed to _______ sunshine to electricity to ru 英语翻译Figure 1 shows the normalized absorption spectra of[Ru(bpy)3-n(dpb)n]2þ (n=1-3) and [Ru(bpy)3]2þ.Comparisonof these spectra can lead to the assignments of a πfπ*transition to the bpy ligand centered at 286 nm,a πfπ*transit what's the difference among 'appealing','attractive',fascinating' and 'glamorous'?ru ti Since the tragedy at Columbine High School last spring,schools have been ru 英语翻译1.Some people believe the worst thing is to do nothing.2.Unless we talk to someone,we'll certaily feel worse.3.She was afraid to tell her parents about it.4.They got her a new wallet and asked her to be more careful.5.It is best not to ru 英语基础写作的问题我弄不清楚,英语中怎样才算一个句子看看这2段话-Five goats,Le YANGyang,A XIANG,A he,a ru and a yi,which mean luckiness andhappiness,have been decided as the mascots of Guangzhou Asian Games.-It was reporte 英语翻译ru tiwhat cost your the chance to see the film怎么翻译 一楼的同志， 英语翻译The DNA photocleavage abilities of the dpb-based complexeswere examined by agarose gel electrophoresis of thesupercoiled pBR322DNAupon red light irradiation (g600 nm;Figure 2).[Ru(bpy)(dpb)2]2þ and [Ru(dpb)3]2þ show muchhigher 初二因式分解问题——简便运算：(2012*2014+1)/(2014^2-4028+1)ru ru ti mu! ru missing me 翻译how ru doing