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【判断题】
A: How come you are working here? B: By bus and then on foot.

① 正确
② 错误
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【单选题】
At the bus stop _____ a soldier and two young people on their way to North Carolina.

① were
② was
③ is
④ waiting
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【单选题】
Rob has some[填空].

① leaf
② leave
③ leafs
④ leaves
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【单选题】
When Sarah and I ____ on an article for the school newspaper, we found it difficult to work together.

① compiled
② gathered
③ collaborated
④ collected
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【判断题】
Formal English is much more difficult to attain since it is subject to more restraints and requirements.

① 正确
② 错误
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【判断题】
在LIN-BUS总线中,数据总线可采用单线。( )

① 正确
② 错误
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【单选题】
CAN‐BUS 总线故障现象下列说话错误的是( C )

① 断路总线上电压波形不正常
② 对正相短接，总线上无电压变化，总线电压为蓄电池电压
③ 对搭铁短接，总线上无电压变化，总线电压无穷大
④ 双线之间短路，两线电压波形相同是均为不正常
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【单选题】
Would you like some [填空]?

① potato
② potatos
③ potatoes
④ potatos
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【单选题】
There [填空] some chopsticks on the table.

① are
② is
③ have
④ was
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【单选题】
Some [填空] are swimming in the river.

① child
② boy
③ boys
④ childs
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