Ron was uninjured in the accident.

What is the purpose of Ron Evans’ research?

阻容耦合多级放大电路的输入电阻为（ ），输出电阻为（ ）。 A: Ri1；Ro1 B: Ri1；Ron C: Rin；Ro1 D: Rin；Ron

Ben left Ron in the tunnel to go and get help.

‌要使TTL与门工作开门状态，可使输入端对地外接电阻RI( )‌ A: ＞RON B: ＜ROFF C: ROFF＜RI＜RON D: ＞ROFF

Ron and Ben had never been to this part of England before.

实验证明，反应温度每增加10℃，RON增加（）。

青书学堂: (单选题) After a year, Ron to realize that ________.(本题1.5分)

青书学堂: (单选题) Ron Jackie left school at sixteen because ________.(本题1.5分)

Ron paid the bill with _____________. A: debit card B: credit card C: cash D: AliPay