真结合径（） A.耻骨联合上缘中点到骶岬上缘中点间的距离 B.耻骨联合下缘至骶岬上缘

A game of “catch” is just two people throwing a ball back and forth (来回地). They might have baseball               , or they might use their hands.In fact, playing catch is part of baseball          to make you get used to using a ball and a glove. But any American kid will tell you it’s much more than that.

Playing catch is a time for kids to be with their          . It’s a time when there’s nothing to worry about besides catching a ball. It’s a time when words move as smoothly as the ball itself back-and-forth, easy and relaxing. It’s an excuse to spend time          .When you ask some adults(成年人) to          the good memories of their dads, they nearly always say something about playing catch. Why? Probably because dads are usually very          with their work. A catch game is a time that is only for one thing. This is a time when a kid has his or her dad’s attention. There is no work, no phone and no other people around to take your dad away          you. For the time of playing a game of catch—your dad is all          .

物质由______组成，分子由______组成，原子核外的电子绕______运动．

近来，美国著名网站Politic揭开公共利益集团谷歌与奥巴马政府的关系。谷歌一直默默建立政治影响力，并聘请了一大群与两党关系密切的合约说客在国会山为其工作。谷歌在2009年总统大选出钱出力，是奥巴马竞选阵营的资助者，其科技产品对奥巴马起着推波助澜作用。其后，奥巴马筹组新班子延揽了谷歌三位前高层。这些事实说明[ ]

①美国利益集团对国家决策都起决定性作用

②美国利益集团通过游说、影响选举参与政治

③三权分立是协调资产阶级权力分配的机制

④国会、政府与利益集团间形成了共生关系

A、①②

B、②③

C、②④

D、③④

女，31岁，头痛，头晕，行走不稳，请结合影像图像选择最可能的诊断（）

A.脑桥出血

B.小脑出血

C.小脑梗死

D.脑桥梗死

E.脑膜炎

心脏内兴奋传导速度最慢的部位是

A．窦房结
B．心房肌
C．房室交界
D．心室肌
E．普肯耶纤维