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【单选题】
根据《SDH长途光缆传输系统工程验收规范》（YD/T5044—2005），关于试运行，下列说法错误的是（）。A.
试运行由建设单位组织维护人员进行
B.
试运行期间可以定期对设备进行指标抽测
C.
试运行期间可以对系统进行稳定性观察
D.
试运行期间不可以开放任何业务
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举一反三
【单选题】No matter how well you construct your speeches, they are likely to __________ unless you speak about matters of interest to your listeners.
A.
become offensive
B.
become illogical
C.
fall flat
D.
mislead
【单选题】No matter how well you construct your speeches, they are likely to __________ unless you speak about matters of interest to your listeners.
A.
fall flat
B.
become offensive
C.
mislead
D.
be illogical
【简答题】Unless you speak to him first, she ___(not speak) to you.
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