一段电阻两端的电压是4V时，通过它的电流是0.2A，如果在它两端再并联上阻值为R

关于保留灌肠的描述，下列错误的是（）

A、灌肠前先排便

B、臀部抬高lOCm，液面距肛门小于30Cm

C、慢性菌痢者取左侧卧位

D、插入肛管lO~15Cm，药量400m

E、灌肠后药液应尽量保留1h以上

根据下列各句句意和空白之后的汉语提示词，在答题卡指定区域的横线上写出对应单词的正确形式，每空只写一词。

小题1:The villagers insisted the______(化学的)works be closed down right away.          

小题2:We will make an ________(道歉) for the delay to your flight.．      

小题3:“Please don’t _______(打断)me when I am talking,”said the teacher.

小题4:Pollution is strictly______(禁止)by law in our hometown.              

小题5:On _____(进入)the classroom, the students began to study carefully.          

小题6:The group is made up of local______(音乐家)who have been performing for several years.

小题7:Recently, I have had an______（采访）with university students about their opinions on job choosing.

小题8:In North China, the weather in ______(十一月)could be very cold.                    

小题9:It is useful to take proper and______(定期的)exercise in order to keep fit.    

小题10: ______(判断)from his accent, he is an American.

肝转移癌在TWI呈现“灯泡征”，其原发病变多见于()

A．乳腺癌

B．平滑肌肉瘤

C．胃肠道癌

D．内分泌肿瘤

E．肺癌

通过下列哪个环节，使动脉血变为静脉血

A．肺通气

B．肺的换气

C．气体在血液中的运输

D．组织气体交换

下列哪项是日常维护作业的内容？（）

A.补足胎压、剔除胎纹间的杂物

B.检查和调整制动间隙

C.调整转向节、转向摇臂

D.拆检轮胎，进行轮胎换位