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【简答题】
某放大电路如图所示，已知三极管电流放大系数β=50，UBE=0.6V，静态时UCE等于 ( )V。
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The survey __________ our school last month shows that about 2 percent of the students are addicted to Internet games.
A.
conducted
B.
having been conducted
C.
conducting
D.
to be conducted
【判断题】箱式托盘的主要特点是保护能力强，可有效防止塌垛，防止货损；由于四周的护板护栏，这种托盘装运范围较大，不但能装运码垛的整齐形状包装货物，也可装运各种异型不能稳定的物品。
A.
正确
B.
错误
【单选题】The survey ________ in our school last month shows that about 2 percent of the students are addicted to Internet games. [ ]
A.
conducted
B.
having been conducted
C.
conducting
D.
to be conducted
【简答题】强胸横梁属于( )的构件
【单选题】The survey ____ in our school last month shows that about three percent of the students are addicted to the Internet games.
A.
conducted
B.
was conducted
C.
conducting
D.
to be conducted
【单选题】采用HPLC法进行杂质检查,当没有杂质对照品时,可以采用不加校正因子的主成分自身对照法,但是要求( )
A.
杂质结构与主成分结构相似，相对响应因子在0.9~1.1
B.
杂质结构与主成分结构相似，相对保留时间在0.9~1.1
C.
杂质结构与主成分结构相似，相对保留因子在0.9~1.1
D.
杂质结构与主成分结构相似，相对计算因子在0.9~1.1
【单选题】The survey_________in our school last month shows that about 2 percent of the students are addicted to Internet games.
A.
conducting
B.
having been conducted
C.
conducted
D.
to be conducted
相关题目：
【判断题】箱式托盘的主要特点是保护能力强，可有效防止塌垛，防止货损；由于四周的护板护栏，这种托盘装运范围较大，不但能装运码垛的整齐形状包装货物，也可装运各种异型不能稳定的物品。
A.
正确
B.
错误