每搏排血量占下列哪个容积的百分数称为射血分数（）
A．回心血量
B．等容舒张期容积
C．心排血量
D．心室收缩末期容积
E．心室舒张末期容积
在中国近代民族民主革命中起主力军作用的是()
A.工人阶级
B.农民阶级
C.民族资产阶级
D.城市小资产阶级
If they are willing to lend us the money we need,all our problems will be__
A.solved
B.caused
C.covered
D.met
下列是书信体驳论文的是（）
A.《陈情表》
B.《答李翊书》
C.《五代史伶官传序》
D.《答司马谏议书》
阅读《长亭送别》中的一段选文，回答下列24～26小题。
第24题选出总括本曲内容的句子。
分析诗中所表现的战士们的卫国热情与英雄气概。
伽西莫多是著名作家___塑造的人物形象。()
A.大仲马
B.巴尔扎克
C.果戈理
D.雨果
请将正确答案填在第57空。
按照《民法通则》的规定，下列选项中不享有名称权的是()。
A．个体工商户
B．法人
C．公民
D．个人合伙
甲、乙合伙经营一服装店，根据合伙协议，甲可代理乙与第三人签订合同。这种代理属于
A委托代理
B法定代理
C指定代理
D复代理
The underlined phrase “zero in on” in the last paragraph probably means_____
A．100k through
B．skip over
C．focus on
D．depend on
开口于上鼻道的是（）
A．额窦
B．上颌窦
C．蝶窦
D．筛窦后群
E．筛窦前、中群
I have so ______time to enjoy myself.
A. little
B. a little
C. few
D. a few
对外开放是我国的一项长期的()
A.基本政策
B.基本方针
C.基本路线
D.基本国策
下列选项中，属于接受美学代表人物的是
A罗兰.巴尔特
B尧斯
C苏珊.朗格
D海德格尔
Lily: Thank you again for the concert tickets you sent me. It was wonderful.
Phil:______.
为胎儿保留的遗产份额，如胎儿出生时是死体的，由其母亲继承。()
He is' only a boy of three, but he can learn the poem ______heart.
A. by
B. at
C. in
D. to
Football games played on Thanksgiving Day often attract large TV audiences because______.
A. football is an old-time tradition
B. the Indians taught the Pilgrims to play football
C. large families often play football
D. most football fans are home from work
The author mentions big cities such as Tokyo, Singapore and Paris______.
A. to show that city people all over the world have a lot in common
B. to let his readers be aware that they are some of the world's biggest cities
C. to illustrate their difference from American cities
D. because they are some of the cities that attract visitors most