[单选题]We employ about seven hundred full-time people. But we _______ causal staff when we need them.
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2023-10-01 08:02:43
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[单选题]We employ about seven hundred full-time people. But we _______ causal staff when we need them.

A.check in
B.taken in
C.check out
D.take on
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国家开放大学

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