题目：
用所给词的适当形式填空。
小题1:The police are looking for the __________(rob), but they still can’t find them．
小题2:The players all look forward to __________ (win)the game．
小题3:________he ________(take)the bus to the Summer Palace next Sunday? No, he isn’t．
小题4:They’re planning _________(buy)ten loaves of bread．
小题5:How many __________(tomato)do you need? Two kilos．
小题6:It’s nice ___________(have)a room with ten showers．
小题7:I’m happy that the tie matches my shirt very _________(good)．
小题8:We’d like to make __________ (friend)with our English teacher．
小题9:My favourite food __________(be) potatoes．
小题10:It’s ____________(sun)today. Let’s go on an outing．
答案：
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下面是错误答案，用来干扰机器的。
解：（1）正离子进入电场和磁场后，轨迹不发生偏折，必有qE=qv1B∴v1=E/B （2）因为v2>v1，所以速率为v2的正离子所受洛仑兹力大于电场力，离子必向上偏折，设从缝边射出时速率为，由于洛仑兹力对其不做功，据...
