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【简答题】
当 74LS151 芯片作为数据选择器正常工作时, D7D6D5D4D3D2D1D0=10011011 时, ABC 为 000 时, LED 的状态是 ; ABC 为 010 时, LED 的状态是 。
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皮皮学刷刷变学霸
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【单选题】下列选项中的申请日不包括优先权日的是( )。
A.
发明专利权的期限为二十年，自申请日起计算
B.
国务院专利行政部门收到发明专利申请后，经初步审查认为符合专利法要求的，自申请日起满十八个月，即行公布
C.
在专利申请日前已经制造相同产品、使用相同方法或者已经做好制造、使用的必要准备，并且仅在原有范围内继续制造、使用的，不视为侵犯专利权
D.
发明专利的申请人请求实质审查的时候，应当提交在申请日前与其发明有关的参考资料
【单选题】听力原文：What's the weather forecast for today? (A) Oh yes, it's a beautiful day. (B) The newspaper is calling for sunshine all day. (C) It's expected to be done by tomorrow. (12)
A.
B.
C.
【单选题】关于创新的正确论述是( )。 A.不墨守成规,但也不可标新立异 B.企业经不起折腾,大胆地闯早晚会出问题 C.创新是企业发展的动力 D.创新需要灵感,但不需要情感
A.
B.
C.
D.
D
【单选题】听力原文：What did the doctor say? (A) It's on the second floor. (B) I think so too. (C) He needs to run some tests. (13)
A.
B.
【单选题】听力原文：How much is the air-ticket to New York, please? (4)
A.
One hundred dollars.
B.
It's next to the station.
C.
Sorry, I have no money.
D.
Sony, I don't know the way.
【单选题】听力原文： April Fool's Day started in the sixteenth century in Europe. Before that time, New Year's Day was celebrated on April 1st. Then a new calendar was introduced called the Gregorian calendar. Janua...
A.
Play jokes on others.
B.
Say 'April Fool' to others.
C.
Celebrate the New Year.
D.
Celebrate the adoption of calendar.
【单选题】听力原文：W: Mr. Watson, I wonder whether it' s possible for me to take a vacation early next month. M: Did you fill out a request form? Q: What is the probable relationship between the two speakers? (15)
A.
Teacher and student.
B.
Doctor and patient.
C.
Manager and office worker.
D.
Travel agent and customer.
相关题目：
【单选题】关于创新的正确论述是( )。 A.不墨守成规,但也不可标新立异 B.企业经不起折腾,大胆地闯早晚会出问题 C.创新是企业发展的动力 D.创新需要灵感,但不需要情感
A.
B.
C.
D.
D