问题
单项选择题
心的位置在（）
A.第5～8肋软骨之间
B.胸腔的纵隔内
C.约1／3在前正中线左侧
D.约2／3在前正中线右侧
E.第2～6胸椎之间
答案
参考答案：B
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心的位置在（）
A.第5～8肋软骨之间
B.胸腔的纵隔内
C.约1／3在前正中线左侧
D.约2／3在前正中线右侧
E.第2～6胸椎之间
参考答案：B
| 完形填空。 | |||
| Mosquitoes(蚊子)can be seen everywhere all over the world, especially in summer. And there are more than 2,500 kinds of them. __1 _likes the mosquito, but the mosquito may like you. She thinks your blood is delicious. She ? Yes , she. It’s true that the male(雄性)mosquito doesn’t bite and only the female mosquito bites because she 2 blood to lay eggs. She is always 3 things or people she wants to bite. If she likes what she finds, she will bite. But if she doesn’t like your blood, she 4 to someone else for more delicious blood. Next time a mosquito bites you, just remember you’re different from others. If the mosquito likes you, she will land on your body 5 letting you know. She bites you 6 quickly and quietly that you may feel nothing. After she bites, you will have an itch(痒)on your body because she puts something from her mouth together with your blood. By the time the itch begins, she has 7 . And then what happens? Well, after her delicious 8 ,it’s dark. The mosquito feels 9 . She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, 10 eggs. | |||
| ( )1.A.Everyone ( )2.A.needs ( )3.A.finding ( )4.A.will turn ( )5.A.with ( )6.A.so ( )7.A.flies away ( )8.A.breakfast ( )9.A.tiring ( )10.A.3 hundreds | B. No one B. need B. wants B. turns B. without B. such B. flew away B. dinner B. tired B. hundred of | C. Someone C. want C. looking for C. turn C. after C. very C. flown away C. lunch C. relaxing C. hundreds of | |