采用吊斗浇筑机械振捣时，在浇筑地点混凝土的坍落度宜选用( )。A．50～80mmB

People in Australia love koalas and take care of them. They have set up places for them to live safely. No one can kill them for their pretty fur(毛皮). When a koala is born, he has no fur. And he is not as big as your little toe(脚趾)! The mother koala has a pocket in the front of her body. The baby goes into this warm pocket. There he stays for six months. The koala could not live without a special kind of tree. The tree gives him both his home and his food. For most of the day the koala sleeps in the tree. At night the koala looks for food. He may go miles to find it. He likes only the bark and the leaves of the tree. He eats nothing else. And he eats more than two pounds each night！How lovely the koalas really are!

小题1:People in Australia_________.                                                                   

A．keep koalas in their homes

B．put koalas in the tree

C．set up places for koalas to live safely

D．raise baby koalas in their pockets小题2:After he is born, the baby koala lives in his mother' s pocket _________.                     

A．for six days

B．for six months

C．for a night

D．all his life小题3:The underlined words “bark” may means ________.                          

A．树皮

B．花朵

C．树干

D．树枝小题4:Koalas cannot live without a special kind of tree because ____.                          

A．they have to keep cool under the tree

B．they eat the fruit on the tree

C．they stay in the tree all the time

D．they live in the tree and get food from it小题5:What is the text mainly about?                                                                

A．Lovely koalas in Australia.

B．How people in Australia protect koalas.

C．Koalas cannot live without a special kind of tree.

D．The way mother koalas take care of their babies.

一患者3天前自高处坠下，背部疼痛，双下肢不能活动。此时应注意何种并发症（）

A.肝脾破裂

B.泌尿系结石

C.压疮

D.坠积性肺炎

E.骨化性肌炎

疼痛诊疗时的感觉检查一般不包括下列哪项（）

A.浅感觉和深感觉检查

B.味觉和嗅觉

C.痛、温和触觉

D.震动感和位置觉

E.浅感觉和深感觉的左右对照检查

男性患者，32岁，间断性上腹痛3年，时有反酸、嗳气，每于受凉后加重。近3天疼痛加重，今日患者突然呕咖啡样物500ml，同时感头晕、心悸，出汗。出血后腹痛缓解。患者出血的原因考虑为（）

A.急性胃黏膜病变

B.慢性胃炎

C.胃癌

D.消化性溃疡

E.食管静脉曲张破裂

在铁路新线设计时，一般是列车以机车计算速度在下列坡道上作等速运行为条件来确定货物列车的牵引质量（）。

A.平坡

B.加力坡

C.限制坡度/2

D.限制坡度