皮皮学，免费搜题
登录
搜题
【单选题】
—It's already Monday. Sam lost his MP4 last Wednesday and he hasn't found it. —Really? Do you mean _______? [ ]A.
did Sam lose his MP4 five days ago
B.
Sam lost his MP4 for five days
C.
it's five days since Sam lost his MP4
D.
has Sam lost his MP4 for five days
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】在如图所示OCL电路中，已知输入电压【图片】【图片】为正弦波，并且能提供足够大的幅值，使负载电阻RL上得到的最大输出功率【图片】；三极管的饱和管压降【图片】。静态时，若<0V，则正确的调节方法是（）；【图片】< /div>
A.
增大 R 1
B.
增大 R 2
C.
增大 R 4
D.
以上均不对
【简答题】Paras. 1–3: Exposition(情节交代) The author sets the scene of the story by providing information about the four “wh-” words: who, where, what, and why. “Who” refers to the narrator, his roommate Rob, and ...
【单选题】The man has two sons, and ____ of them are strong. One is tall and ____ is short.
A.
All, another
B.
Neither, the other
C.
Both, another
D.
Both, the other
【简答题】The man has two sons, and ____of them are strong. One is tall and ____is short.
【简答题】即顾客支付能力审查,实质就是指顾客具有的现实购买能力审查。
【简答题】阅读下面一篇材料，从所给的A-G七个选项中，选出正确的选项填空，使短文通顺、内容完整。 People all over the world do shopping in supermarkets. Who decides what you buy in the supermarkets? 1._____________ When you go into the supermarket, you s...
【简答题】Part I — Paras. 1– 3 The author sets th e scene of the story by providing information about the four “wh-” words: who, where, what, and why. “Who” refers to the narrator, his roommate Rob, and the bea...
【单选题】在如图所示OCL电路中，已知输入电压【图片】【图片】为正弦波，并且能提供足够大的幅值，使负载电阻RL上得到的最大输出功率【图片】；三极管的饱和管压降【图片】。动态时，若输出产生交越失真，则正确的调节方法是（）【图片】
A.
增大 R 1
B.
增大 R 2
C.
增大 R 4
D.
以上均不对
相关题目：
【单选题】在如图所示OCL电路中，已知输入电压【图片】【图片】为正弦波，并且能提供足够大的幅值，使负载电阻RL上得到的最大输出功率【图片】；三极管的饱和管压降【图片】。静态时，若<0V，则正确的调节方法是（）；【图片】< /div>
A.
增大 R 1
B.
增大 R 2
C.
增大 R 4
D.
以上均不对