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【单选题】
缺乏维生素B1可能导致的疾病为( )。A.
皮肤炎
B.
贫血症
C.
脚气
D.
夜盲症
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反馈参考答案：
举一反三
【简答题】将下面的反义疑问句补充完整。 He must be a worker, _________?
【单选题】A(n) ( ) mouse emits and senses light to detect movement.
A.
cordless
B.
optical
C.
camera
D.
microphone
【简答题】【问题1】 非对称数字用户线(Asymmetric Digital Subscriber Line，ADSL)是一种利用现有的传统电话线路高速传输数字信息的技术。ADSL技术可以充分利用现有铜线网路，只要在用户线路两端加装ADSL设备即可为用户提供服务。ADSL系统构成模型如图2-2所示。 请将以下术语所对应的编号，将图2-2所示的拓扑结构中(1)～(8)空缺处的名称填写完整。 【供选择的答案】 ...
【单选题】How can a person be qualified as a gold-collar worker?
A.
He must continue to learn and work hard in his career.
B.
He must have the knowledge of more than one subject.
C.
He can make a skillful use of his wisdom and his knowledge.
D.
He can earn more than a blue-collar worker does.
【简答题】He must be a worker, _______________ ?
【单选题】He works and works without stopping. He must be a _____.
A.
worker
B.
workaholic
C.
Engineer
D.
work
【简答题】T he paragraph below could be revised to improve their coherence. Answer the question s about coherence that come after the paragraph with the help of supplementary information. Supplementary informat...
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