題目列表(包括答案和解析)
A、 | B、 | C、 | D、 |
A.軌跡為pb,至屏幕的時(shí)間將小于t
B.軌跡為pc,至屏幕的時(shí)間將大于t
C.軌跡為pb,至屏幕的時(shí)間將等于t
D.軌跡為pa,至屏幕的時(shí)間將大于t
A.軌跡為pb,至屏幕的時(shí)間將小于t B.軌跡為pc,至屏幕的時(shí)間將大于t
C.軌跡為pb,至屏幕的時(shí)間將等于t D.軌跡為pa,至屏幕的時(shí)間將大于t
A.軌跡為pb,至屏幕的時(shí)間將小于t B.軌跡為pc,至屏幕的時(shí)間將大于t
C.軌跡為pb,至屏幕的時(shí)間將等于t D.軌跡為pa,至屏幕的時(shí)間將大于t
A.軌跡為pb,至屏幕的時(shí)間將小于t
B.軌跡為pc,至屏幕的時(shí)間將大于t
C.軌跡為pb,至屏幕的時(shí)間將等于t
D.軌跡為pa,至屏幕的時(shí)間將大于t
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