题目： 下图为甲种遗传病（基因为A、a）和乙种遗传病（基因为B、b）的系谱图。其中一种遗传病基因位于X染色体上。请回答以下问题（概率用分数表示）。III—7的乙病致病基因来自I代（）号 答案： 参考答案：4
题型：完形填空 完形填空。 There is a shop1 my home.The people in the shop are 2 .On Saturday afternoon,we go3 things there.It opens at nine in the morning.It4 late in the evening.You can buy 5 things in the shop.You can buy food,clothes,schoolthings 6 many other things.But 7 no English books there. Now we are in the shop.My mother 8 to buy a shirt for 9 and a blouse for me.Then we'd like to have a bottle 10 orange.( )1.A.in ( )2.A.friend ( )3.A.and buy ( )4.A.closes ( )5.A.much ( )6.A.and ( )7.A.there is ( )8.A.is wanting( )9.A.my father( )10.A.for B.at B.friendsB.and buyingB.closedB.a lot B.but B.there are B.are wantingB.my father'sB.with C.on C.friendly C.to buying C.is closeC.a lot ofC.with C.have C.want C.her father'sC.about D.near D.dear D.to shopping D.closing D.lot of D.so D.has D.wants D.his father D.of 查看答案
