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【单选题】
下列哪个叙述是 正确的?
A.
可以同时用fnal和abstract修饰一 个类。
B.
final类至多可以有一个子类。
C.
子类可以用super关键字调用父类的父类中的方法。
D.
子类和父类不必在同一个包中。
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【简答题】Task 5 Translate the sentences. Key words and phrases are in brackets. 1. How did you hear about our hair care products? ( 护发产品 ) 2. If you leave your address, we will mail you our latest catalog and ...
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B.
促胰液素引起水多、富含碳酸氢盐的胰液分泌
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A.
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C.
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D.
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E.
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D.
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A.
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B.
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C.
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相关题目:
【单选题】第19篇 下面文章中有5处需要添加小标题。请从以下选项中选出符合各段意思的小标题。
A.
What will you do if your hair or clothes start to burn?
B.
Don’t open a hot door!
C.
Make escape plans.
D.
Practice for a fire.
E.
Put a smoke alarm in the house People know the dangers of fires. It’s good for a family to learn how toprepare for a fire. Here are some suggestions: 1 . Smoke from a fire causes the alarm (报警) to go off .Thealarm makes a loud sound. The sound tells everyone to leave the house at once. 2 . They should know all the ways out of the house. Ifthere is a fire, everyone follows the plan to get out. Part of the plan is tocheck all the windows to make sure they can be opened easily (容易地). Buy fire extinguishers ( 灭火器) in the house, Everyone in the family should knowhow to use them. 3 . They do fire practice because they teach childrenabout fire safety. Everyone in the family should know the following fire rules: 4 . The fire can grow more quickly if youopen the door. Stay close to the floor! Smoke can be more dangerous than fire,The best air is near the floor because smoke rises( 上升). 5 . First, stop! Don’t run! The fire burns faster becauseof more air. Drop! Fall to the floor. Then roll (滚动)! Turning over and over will makethe fire go out. Put a blanket (毯子) around you to keepair away from the fire that may still be on you. A clever family is ready all the time. If there is a fire, don’t forgetto call 119 for help.