题目

完形填空。 My name is LindaGreen. Kate is my1and Alan is my uncle. My cousin Paul is2son.My aunt Kate is very3but my uncle Alan and my cousin Paul4.In Paul's room, you can5his things are everywhere: His6areon his bed; his model plane is on the sofa and his keys are7thechair. My aunt Kate always8.Paul put away (放好) his things. Paul can't find his things and always asks, 9ismy ruler? Where's my schoolbag? My uncle10says,I don't11. Ask your mother12help.She puts away your things. One day, my uncleAlan plays (玩) computer games. Paul reads (看) a13.He can't find his school in the map. H四位同学同时进行反应：A(g)＋3B(g)＝2C(g)＋2D(g) 的速率测定实验，分别测得反应速率如下：① v(A)= 0.15mol/(L·s)②v(B)= 0.6mol/(L·s) ③v(C)= 0.4mol/(L·s)④v(D)= 0.29mol/(L·s)。其中，反应进行得最慢的是  （   ）                     A．①            B．②          C．③           D．④