男，45岁，肝硬化3年病史，突然呕血300ml，黑便3次约500ml，下列哪项不可能

In order to safeguard（保证）the education of all Hope Chinese Scholl（HCS）students and the normal running of the school, the following rules should be followed:

★ Be quiet in classroom and hallways. Do not run or shout in classrooms or hallways.

★ Do not drink or eat in classrooms or hallways.

★ Stay in the school during school time as well as rest time. Do not leave the school or play out of the school area during school time. This includes rest time.

★ Do not scribble on any desks or walls.

★ Be respectful（尊敬）to teachers and parents.

★ Help teachers and other students to keep the classroom clean. Do not move desks, chairs, and other furniture in the classroom without the teacher’s instructions.

小题1:Students in HCS can       in classrooms.

A．run

B．read

C．shout

D．eat小题2:Students can’t      during the time between classes at HCS.

A．play

B．leave school

C．speak

D．stay in classrooms小题3:The underlined work “scribble” means “    ” in Chinese.

A．肆意摇晃

B．随意拿走

C．乱写乱画

D．胡乱搬动小题4:Which of the following is NOT mentioned in the passage?

A．Looking after school furniture.

B．Keeping the classrooms clean.

C．Respecting teachers.

D．Doing homework.小题5:The best title for this passage is “    .”

A．Hope Chinese School

B．How to Keep the School Clean

C．The Rules of HCS

D．How to Get on with Teachers

理解句子选一选。    

1．“他们骄傲地举起了手，有的还神气十足地左顾右盼。”这句话的意思是  [ ]

A．孩子们因为有父母的疼爱、关心，非常自豪。    

B．孩子们听到老师提出的问题太容易了，所以非常骄傲地举手回答。    

2．“我想去寻找蕴藏在他们心灵深处的、他们自己还没有意识到的极为珍贵的东西。”这句话中“珍贵的东西”指的是   [ ]

A．孩子们已经感受到父母的爱。    

B．要懂得回报父母的爱。    

3．“他们的可爱恰恰在那满脸的犯了错误似的神色之中。”这句话的意思是   [ ]

A．他们可爱是因为他们犯了错误。    

B．他们可爱是因为他们在懂得了应该关心父母之后，在没有用实际行动回报父母时就像犯了错误那样感到惭愧。

机械：收割机( )。

A．谷物：高梁

B．飞机：火车

C．校长：教师

D．电影：话剧

在工业生产中，被作为冷凝和冷却用的一种换热设备是( )。

A．冰机

B．空冷器

C．排风机

D．轴流风机

regulated exocytosis pathway (调节型胞吐作用)