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【简答题】
Everyone wants to have healthy teeth. When you laugh, you will 1 your mouth and show your teeth. The healthier your teeth are, the happier you feel. Why is that? It's 2 your teeth are important in many ways. Take care of them, and they'll help to take care of you. Strong, 3 teeth help you grow. They also help you speak clearly. You can take pate of your teeth by doing like these: Brush your teeth 4 a day, after getting up and before bedtime. And you brush all of your teeth, not just the front ones. Spend some time 5 the teeth along the sides and in the back. Take your time while brushing. Spend at 6 three minutes each time you brush. Be sure your toothbrush is soft. Ask your parents to help you get a new toothbrush 7 three months. Clean between your teeth with dental floss(牙线).I t feels strange when you do it at first, but soon you'll get used to 8 it. Brushing 9 your teeth healthy. You also need to care about what you eat and drink. Eat 10 fruits and vegetables and drink water instead of drinks. Do you want to have white and healthy teeth? Please brush your teeth! 小题1: A.close B.wash C.serve D.open 小题2: A.though B.because C.if D.when 小题3: A.tight B.white C.healthy D.clean 小题4: A.once B.twice C.three times D.four times 小题5: A.on B.in C.at D.to 小题6: A.first B.least C.once D.last 小题7: A.every B.both C.either D.neither 小题8: A.helping B.making C.feeling D.doing 小题9: A.starts B.produces C.keeps D.suggests 小题10: A.a lot B.lots of C.few D.a little
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举一反三
【单选题】周期 T=1S 、频率 f = 1Hz 的正弦波是( )
A.
4cos314 t
B.
6sin ( 5t+17 ° )
C.
4cos2 π t
D.
4cos π t
【多选题】概括地讲,“教师中心论”是指( )
A.
以教师为中心
B.
以教材为中心
C.
以课堂教学为中心
D.
以知识为中心
【单选题】周期 T=1S 、频率 f = 1Hz 的正弦波是( )
A.
4cos314 t
B.
6sin ( 5 t + 17° )
C.
4cos2π t
D.
4cos ( 2π t + 17° )
【判断题】果胶物质的存在状态包括原果胶、果胶、半乳糖等( )
A.
正确
B.
错误
【单选题】周期T=1S、频率f=1Hz的正弦波是( )
A.
4cos314t
B.
6sin(5t+17°)
C.
4sin2πt
D.
4cos2πt
【多选题】因不可抗力影响旅游行程的,依据《中华人民共和国旅游法》,下列关于旅行社处理的说法正确的是( )。(2019)
A.
危及旅游者人身安全的,旅行社采取相应的安全措施而支出的费川,由旅游者承担
B.
合同变更的,因此增加的费用由旅游者承担,减少的费用退还旅游者
C.
合同解除的,组团社应当在扣除已支付且不可退还的费用后,将余款退还旅游者
D.
合同不能完全履行的,旅行社可以在合理范围内变更合同
E.
合同不能继续履行的,旅行社不得主动解除合同
【单选题】以展示产品模型开篇属于()
A.
介绍法
B.
悬念法
C.
感谢法
D.
实物法
【单选题】正常情况下,体内维生素C代谢后主要从()排出
A.
胆汁
B.
C.
尿
D.
粪便
【多选题】依据《中华人民共和国旅游法》,因不可抗力或者旅行社、履行辅助人已尽合理注意义务仍不能避免的事件,影响了旅游行程。下列关于处理这种情形的说法中,正确的有( )。
A.
旅行社采取相应的安全措施支出的费用,由旅行社承担
B.
造成旅游者滞留的,旅行社采取相应安置措施增加的食宿费用由旅游者承担
C.
合同变更的,因此增加的费用由旅行社与旅游者分担
D.
造成旅游者滞留的,旅行社采取相应安置措施增加的返程费用由旅行社承担
E.
合同不能继续履行的,旅行社和旅游者均可以解除合同
【单选题】周期 T=1S 、频率 f = 1Hz 的正弦波是( )
A.
4cos314t
B.
6sin ( 5t+17 °)
C.
4cos2πt
D.
6sin ( 5t )
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