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【单选题】
听力原文：W: Hello, John, how are you feeling now? I hear you've been ill. M: They must have confused me with my twin brother Rod. He's been sick a week, but I've never found better in my life. What do we learn about the man?A.
He is taking care of his twin brother.
B.
He has been in his perfect condition.
C.
He must be feeling ill in his health.
D.
He is worried about Rod's health.
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举一反三
【单选题】_______________ while writing, he locked himself in his study.
A.
Not to interrupt
B.
Not being interrupted
C.
Not to be interrupted
D.
Being not interrupted
【判断题】企业应当按照单个存货项目计提存货跌价准备;对于数量繁多、单价较低的存货,可以按存货类别计提存货跌价准备;如果某些存货具有相同或类似最终用途或目的,并与在同一地区生产和销售的产品系列相关,且难以与其他项目分开计量,可以合并计提存货跌价准备。( )
A.
正确
B.
错误
【单选题】以下关于磁粉检测安全防护的叙述中,错误的是:
A.
使用干法探伤时，检测区域应保持通风良好
B.
使用黑光灯时，人眼应避免直接注视黑光光源，必要时应戴上防护用的变色眼镜
C.
安装心脏起搏器者，不得从事磁粉检测
D.
在附近有易燃易爆材料的场所，禁止使用触头法和通电法进行磁粉检测
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