题目内容
软体动物的鳃来源于外胚层。
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乌贼的神经系统发达。
Choose the right adjectives from the list and complete the following sentences. (一词只用一次)ambitious cheerful clever flexible generous hardworking insensitivelazy mean punctual sensitive shy unreliable1. She has never bought me a drink. She is______.2. My sister is always making people angry or upset, because she just doesn’t consider their feelings. She is______.3. They are always on time. They are______. 4. He is lawyers aware of what other people think or feel. He is ______. 5. Tom always shares his toys with his friends. He is ______. 6. They work all the time. They are ______. 7. He never makes his bed or tidies his room. he is very ______. 8. He often promises to do things but then he forgets. He is ______. 9. She likes to smile and be happy. She is ______. 10. My best friend always gets the best grades at school. He is very ________. 11. He would like to become a doctor. He is very _______. 12. He could work in any of the departments. He is ______. 13. Betty hasn't got a boyfriend because she is too ______.
目前人民币汇率实行的是（）。
我国曾经实行过的“双轨制”是指人民币汇率实行固定汇率和浮动汇率并行。
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