问题 多项选择题

可引起牙髓炎的感染途径包括()

A.牙本质小管

B.牙髓暴露

C.深牙周袋

D.血源性感染

E.咬合创伤

答案

参考答案:A, B, C, D, E

阅读理解

I have had thousands of classes since I started school nine years ago. But only one   36 was the most important.
It happened last term just after I had got a   37 result in an exam. I was sad and had lost my confidence. I decided to go to a class which can tell me how to be  38 .
The speaker walked into the room. But he did not start talking  39 a teacher. In­stead, he held up a twenty yuan note(钞票) !
“Who wants this?” he asked. Unsurprisingly,   40 of us in the class held up our hands.
The speaker smiled. Then he put up the note on the blackboard and asked the same question. Again, we all put up our hands. The speaker smiled again, but   41 nothing. Suddenly, he threw the note onto the floor! Then he asked the same  42 a third time.
I didn’t   43 what the speaker was doing. Why was he asking the same question again and again? I didn't know what to do. I wanted the note,   44 I put my hand up again. After a while, he  45 the note and started to laugh. “You have all just told me how to be­come successful,”   46 said to us with the note in his hand.
“The note is worth twenty yuan. It is   47 worth twenty yuan, even though I throw it on the floor. You are like the note. No matter  48 happens to you, you still have your worth.”
When I heard those words, I was deeply moved. Suddenly, I  49 I was worth a lot. I may have done badly in an exam, but it doesn't   50 I can’ t do well in the future. If I believe in myself, I will be successful!
小题1:
A.classroomB.subjectC.classD.school
小题2:
A.sameB.goodC.luckyD.bad
小题3:
A.comfortableB.successfulC.famousD.rich
小题4:
A.likeB.forC.aboutD.by
小题5:
A.bothB.neitherC.allD.none
小题6:
A.saidB.boughtC.sawD.wanted
小题7:
A.studentB.teacherC.questionD.way
小题8:
A.rememberB.understandC.noticeD.find
小题9:
A.soB.thoughC.ifD.or
小题10:
A.took outB.threw awayC.picked upD.put down
小题11:
A.youB.heC.sheD.they
小题12:
A.neverB.sometimesC.hardlyD.always
小题13:
A.whenB.whoC.whatD.how
小题14:
A.realizedB.forgotC.dreamedD.decided
小题15:
A.knowB.meanC.thinkD.complain
单项选择题