对于同一条管道，输送同种油品时紊流状态下的管道摩阻（）层流状态下的管道摩阻。 A.大

Today Chinese people can enjoy longer holidays. They have more time to      .

Zhang Haitao, a middle school student from Shanghai,       to Japan with his parents

    vacation.” Travelling in different countries has always been a dream of     ,” Zhang said.

“  are you going to Japan, by ship or by plane?” I asked him.

“By ship. Travelling by ship is more     than by plane.”

“But a plane is much     than a ship.”

“Yes, but you can’t see much on a plane, while a sea trip can       you happy because you can see the beautiful sea, islands and even big fish.”

“Will the trip cost a lot?” “Certainly.       my father is a businessman. He has      much money in the last three years. Thanks to him, we can go on our trip.”

小题1:A. eat               B. sleep             C. travel

小题2:A. go               B. is going           C. goes

小题3:A. to                B. with              C. for

小题4:A. my               B. mine            C. me

小题5:A. How             B. When             C. What

小题6: A. dangerous         B. interesting         C. difficult

小题7: A. faster             B. slower            C. more expensive

小题8: A. give              B. tell               C. make

小题9: A. But              B. Or                C. So

小题10: A. lost              B. found             C. saved

下列哪种偏倚不属于选择偏倚（）

A.住院偏倚

B.存活病例偏倚

C.转诊偏倚

D.测量偏倚

E.无应答偏倚

脊髓灰质炎一般诊断要点不包括（）

A.感觉正常

B.智力正常

C.对称性弛缓性瘫痪

D.发病前身体器官功能发育正常

E.腱反射减弱或消失，病理征阴性

生物转化的对象是

A．蛋白质
B．脂肪
C．非营养物质
D．糖
E．胆固醇

    为庆祝香港回归10周年，某中学初二（1）班的黑板报新增设了一个 “是真是假”栏目，如下图，其中“真”的是

A、①②

B、①③

C、②④

D、③④