“嘟、嘟、嘟„„”的短促音(响0.35s,断0.35s)是()。
参考答案:忙音
阅读理解
小题1:If you call 66387911 , you can _________ .
A.do some shopping
B.order some fast food
C.have a story time
D.ask for some hotel information小题2:If your mother suddenly falls ill , what number do you have to call ?
A.65661234
B.55659988
C.66788744
D.65669689小题3:It’s Wednesday afternoon , you can go to ________.
A.play pingpong
B.play basketball
C.read stories
D.visit the museum小题4:If your brother wants to see cartoon films , he should go to _________ .
A.48 Zhongshan Road
B.89 East Street
C.Yangtze Stadium
D.98 Green Street小题5:What information can’t you find from the two notices ?
A.Taking a taxi
B.Visitor hotel information
C.Eating fast food
D.Playing football
某研究性学习小组在调查人群中的遗传病时,以“研究××病的遗传方式”为子课题,下列子课题中最为简单可行,所选择的调查方法最为合理的是[ ]
A.研究猫叫综合征的遗传方式,在学校内随机抽样调查
B.研究红绿色盲的遗传方式,在患者家系中调查
C.研究青少年型糖尿病,在患者家系中进行调查
D.研究艾滋病的遗传方式,在市中心随机抽样调查