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【简答题】
刻蚀的方法有两类：湿法刻蚀和干法刻蚀，其中，（）是利用液体化学试剂以化学形式除去硅片表面材料。而（）是利用等离子体辅助来进行刻蚀的技术，刻蚀反应中不涉及液体。
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皮皮学刷刷变学霸
举一反三
【单选题】The circuit in Figure 8-1 fails to produce the proper data output. The individual flip-flops are checked with a logic probe and pulser and each checks OK. What is the most likely cause of the problem?
A.
One of the interconnect lines between two stages has a solder bridge to ground.
B.
The data output line is grounded.
C.
One of the flip-flops has a solder bridge between its input and Vcc.
D.
One of the clock input lines is open.
【单选题】In computer case, , sometimes called system board, is the largest and most important circuit board.
A.
blackboard
B.
chipboard
C.
motherboard
D.
circuit board
【判断题】For RC circuits, it is most convenient to choose the capacitive voltage; for RL circuit, it is best to choose the inductive current.
A.
正确
B.
错误
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