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接触器可用于频繁通断 电路,又具有 保护作用。
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【简答题】Robot Green was 31years old when he went to college. That was his first time he came into the classroom. Eleven years later he received a doctor’s degree in physics. Robert Green was a good example in...
【单选题】I'm (old enough) (not to) let my troubles (to interfere) (with) my work.
A.
old enough
B.
not to
C.
to interfere
D.
with
【单选题】I'm (old enough) (not) to let my troubles (to interfere) (with) my work.
A.
old enough
B.
not
C.
to interfere
D.
with
【简答题】Internet 远程登录服务的熟知端口为 A.21 B.23 C.25 D.80
【单选题】I'm (old enough) (not to) let my trouble (to interfere) (with) my work.
A.
old enough
B.
not to
C.
to interfere
D.
with
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