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【简答题】
间接调频电路如图所示，放大器I CQ =2mA，忽略三极管输入、输出阻抗影响。L和C j 均为无损耗，已知R C =4.7kΩ，变容管参数n=3，V B =0.7，C j0 =5000pF，输入电压v i (t)=10cos5×10 8 t(mV)，v Ω (t)=0.2cos10 4 。t(V)。要求：
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【单选题】Maybe if I _______ literature, but not science then, I would be able to give you more advice now.
A.
studied
B.
would study
C.
had studied
D.
was studying
【单选题】There are two roads and either to the station.
A.
leads
B.
lead
C.
are leading
D.
is leading
【单选题】2017 年 6 月 30 日 晚 , 《不朽的梵高 2.0 》感映艺术展在南宁启幕。此次感映艺术展结合了传记影视等多种艺术形式展出 , 以更立体、更多元的方式近距离“感受梵高”。下列属于梵高的作品是( )
A.
《英雄交响曲》
B.
《安娜·卡列尼娜》
C.
《战争与和平》
D.
《向日葵》
【单选题】下列属于工业化建筑品质优势的是（ ）。
A.
工业化方式的材质与PC结构在防水、防火、隔音、抗渗、抗震、防裂方面能做到更好，确保产品出厂品质
B.
工业化方式对工艺质量的管控较难，工人素质不一，手工作业品质监控难度高，容易出现渗水、开裂、空鼓等质量问题
C.
工业化方式浪费资源，材料耗费量大，扬尘气会，建筑垃圾较多，噪音大，污水多，安全事故多发
D.
工业化方式规划设计反复，材料选型采购不一;项目成本测算差距大，目标成本难以准确制定;施工过程设计变化多，签证过多，过程成本控制难度大
【单选题】I thought that maybe my words will play a role, but when I_______ her to give up smoking, I failed.
A.
managed to advice
B.
persuaded
C.
tried to persuade
D.
suggested
【单选题】-- I’m very tired, helping with the clothes. ----Why not take a rest ,then? ----- ________.
A.
Maybe I should
B.
I am glad to hear that
C.
With pleasure
D.
Thank you
【单选题】The path______the park is lined with many trees.
A.
leading to
B.
led to
C.
was leading to
D.
which leading to
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