A、B两地相距360千米,甲车从A地出发开往B地,每小时72千米,甲车出发后25

题型:解答题

问题:

A、B两地相距360千米,甲车从A地出发开往B地,每小时72千米,甲车出发后25分钟,乙车从B地出发开往A地,每小时行驶48千米。两车相遇后,各自仍按原速度方向继续行驶,直到两车相距100千米。甲车从出发共行驶了多少小时?

考点:一元一次方程的应用
题型:解答题
完形填空
阅读下面的短文,掌握其大意,然后从短文后各题所给的A、B、C、D四个选项中,选择最佳选项。
Are you nervous when you stand in front of the public? Are you afraid to make a speech?
Li Jun, a middle school boy, felt shy when he was making a speech the other day. Li had thought it would be quite easy to speak in front of   1  classmates.
"I was wrong. It was very different and much  2  than talking to my classmates during playtime," Li said. "I tried, but it was really difficult to speak. I felt like a mute (哑巴) and wanted to leave the classroom   3  "
Li is not ___4____. Many middle school students now have the same   5  : they can talk about their ideas freely   6  their best friends after class, but can't speak in public. According to Zhou Hong, a teacher from a university, the main reason is that schools in China pay more attention to writing instead of 7  .
Zhou hopes schools can give students more chances to open their  8  , such as speech competitions, English corners and class discussions. Students can join in any one they want to.   9 he also gives some advice to students. "During your free time you should 10  more. When you're speaking in public, take it ___11___. Just imagine you're talking to nobody and speak up your ideas clearly," Zhou said. "That  12 a fine public speech and you'll feel confident. "
小题1:
A.HerB.myC.yourD.his
小题2:
A.harderB.easierC.better'D.later
小题3:
A.slowlyB.quicklyC.sadlyD.happily
小题4:
A.lonelyB.aloneC.onlyD.just
小题5:
A.answerB.subjectC.problemD.question
小题6:
A.exceptB.besideC.fromD.with
小题7:
A.listeningB.speakingC.readingD.singing
小题8:
A.mouthsB.eyesC.mindsD.hearts
小题9:
A.ButB.SoC.AndD.Or
小题10:
A.playB.practiceC.writeD.Watch
小题11:
A.nervousB.easyC.hardD.funny
小题12:
A.reportsB.keepsC.hearsD.Makes
题型:解答题

套期保值要求无论是开始还是结束时,在现货和期货市场上都应该进行()的反向头寸。

A.数量相等

B.价格相等

C.种类相同

D.期限相同

题型:解答题

仔细阅读下列资料,并根据资料对答问题:

不同状态下的菠菜维生素C(mg/kg)
新鲜菠菜89.0
微波处理菠菜(中火2分钟)74.9
水煮菠菜(沸水1分钟)56.6

请你选用下列所提供的材料用具,设计实验方案,检验上述资料结果是否正确。  材料用具:新鲜菠菜,高锰酸钾溶液,清水,微波炉,酒精灯,研钵(用于研磨),试管,烧杯,滴管。  提示:在没有专门的检测仪器的条件下,你无法得到上述数据,但可以通过高锰酸钾褪色情况判断维生素C含量的多少。

题型:解答题

河豚毒素含量最高的是河豚鱼的______。

A.血液
B.肝脏
C.卵巢
D.肾脏

题型:解答题

该患者心绞痛严重度应为哪一种

A.I级

B.Ⅱ级

C.Ⅲ级

D.Ⅳ级

E.V级

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