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以下（）不满足触发电路的要求。
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单结晶体管自激震荡电路输出的电压波形是（）。
Watch the video clip and fill in the blanks.Pay attention to the present continuous and the prepositions.1. The Clarks (1)such a good time! It's a pleasant evening. Paul and his parents (2)a comedy. It's so funny. They(3)a lot.2. Lucy and her mom (4) the sofa. Lucy(5) her doll. Oliver(6)his toy car on the floor.3. Lucy and Oliver(7)the comedy.4. Olivia is in her room. She(8) her desk. She _____(9)_____ her laptop.5. Mrs. Clark(10) now.6. "Where are you going, honey?""I'm going to the kitchen. I have to make dinner.""I'm (11) ,. I want to help you."7. Mr. and Mrs. Clark (12) dinner now. They like to cook together. Mrs. Clark (13)the vegetables and her husband _____(14)_______ the food.8. Dinner is ready now, but Olivia is missing.9. "Where is Olivia? Paul, please go to her room and tell her we(15) her."10. "What are you doing, Olivia?""I'm (16) my friend, Amy.""Dinner is ready. Everyone (17) you.""I'm (18) it now. I'm coming!"11. The Clarks (19) dinner now. They (20) it.12. It's bedtime. Paul is going to the bathroom. He _____(21)his teeth.13. "Mom, what are Lucy and Oliver doing? Are they (22) ?"No, they (23) . They (24)a bath.14. "And they (25) water all around! They are having so much fun!"15. Oliver and Lucy are in bed now. Their mom (26) them a bedtime story.16. Olivia (27) her bed and she (28)some photos on her phone.17. Her parents (29) the door They (30) the door.18. "Olivia, are you (31)?""No, I'm not. I'm just looking at some photos."19. Her mom (32) her phone. "It's very late. It's time to go to sleep, my dear."20. Olivia's parents (33). Olivia is sleeping now.21. Paul can't sleep. He is going on a class trip tomorrow. He is (34) it. He is very (35).
我国所界定的“产品”范围较窄。我国《产品质量法》所称的产品是指（）
产品质量是指产品满足需要的特性包括（）
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