第31题: [单项选择]以下仪器中根据伯努利原理来设计的是() A. 汾丘里流量计 B. 超声多普勒血流仪 C. 高速离心机 D. 碎石机 参考答案:A
第32题: [单项选择]隐蔽工程经工程师验收,工程符合要求,(),工程师不在验收记录上签字,承包人可进行隐蔽。 A. 验收7小时后 B. 验收24小时后 C. 验收48小时后 D. 验收72小时后 参考答案:B 答案解析:本题考查的是隐蔽工程与重新检验。隐蔽工程经工程师验收,工程符合要求,验收24小时后,工程师不在验收记录上签字,承包人可进行隐蔽。
第36题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. He left his camera at the airport. B. He enjoyed using his new camera. C. He lost his new camera on his trip. D. He left his camera in his friend’s car. 参考答案:D 答案解析:[听力原文]
W: You must have enjoyed using your new camera on your trip.
M: I would have, but after buy