上颌尖牙根颈部横切面形态是 A.圆三角形 B.窄长形 C.卵圆三角形

题型:单项选择题

问题:

上颌尖牙根颈部横切面形态是

A.圆三角形
B.窄长形
C.卵圆三角形
D.葫芦形
E.方形

考点:口腔五官科主治医师口腔内科专业实践能力中级口腔主治医师口腔内科学专业实践能力5
题型:单项选择题

根据短文内容选择正确的答案。

      One day, Allan and his friend Henry went swimming in river. It was very hot. How happy they were in the

river! After they got out of the water, they played games in the sun for a while.

      On their way back, Henry saw some flowers. He liked flowers very much and ran into the green field to

look at them. Now Allan was walking by himself.

      Then he heard Henry calling out: " A snake! Help! "

      " What's wrong with you? " asked Allan.

      " A snake bit (咬) me in the leg. Come here! " 

      Allan ran over and saw a small red wound (伤口) on Henry's leg.

      " The snake was in the grass. I didn't see it."

      " Sit down quickly." Allan told Henry. 

      Allan put his mouth at the little red wound and began to suck (吸) at it. In this way he saved (挽救) Henry's

life. " Oh, Allan, it's very kind of you to help me."

      " That's all right. We are friends and we must always help each other."

1. It was ____________ when Allan and Henry went out.[ ]

A. hot

B. cold

C. raining

D. wet

2. After swimming, they played in the sun ____________.[ ]

A. the whole morning

B. for 2 hours

C. long

D. for a while

3. On their way home, ___________ got something wrong with his ____________.[ ]

A. Allan; leg

B. Allan; head

C. Henry; leg

D. Henry; head

4. Henry and Allan are ____________.[ ]

A. workers

B. good friends

C. brothers

D. farmers

5. Which of the following (下面的) is true?[ ]

A. Henry went to look at the flowers' with Allan.

B. Allan saved Henry's life.

C. Allan saw the snake.

D. They ran to the hospital at once.

题型:单项选择题

中学时代,对异性同学之间的交往认识正确的是

A.中学时代,异性之间交往,同学会说闲言

B.异性交往会导致父母反对,影响家庭关系

C.异性交往会“谈恋爱”,影响学习

D.有利于我们取长补短,共同进步

题型:单项选择题

某公司有A、B、C、D、E、F六个投资项目可供选择,其中A与F是互斥方案,有关资料如下:

单位:万元

投资项目 原始投资 净现值 净现值率
A 120000 67000 56%
B 150000 79500 53%
C 300000 111000 37%
D 125000 21000 16.8%
E 100000 -250 -0.25%
F 150000 80000 53.33%

要求:
(1)投资总额不受限制时,做出投资组合决策;
(2)投资总额限定为40万元时,做出投资组合决策;
(2)投资总额限定为60万元时,做出投资组合决策;

题型:单项选择题

关于药物动力学参数,下列说法错误的是( )。

A.吸收速率常数是药物从吸收部位进入体循环的速度

B.消除速率常数是药物体内代谢、排泄的速度与体内药量之间的比例常数

C.血管给药时吸收分数小于1

D.表观分布容积大,则表明药物分布广泛,血药浓度很低

E.生物半衰期可用来衡量药物消除速度的快慢

题型:单项选择题

简述流转税的特征。

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