___ I read your advert, I decided to buy the watch ____ you claimed it worked in all conditions ____ in water and extreme heat.
A.When; since; like
B.After; since; such as
C.When; for; for example
D.After; for; such as
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B解析试题解析：考查连词，sine 因为，既然；for 表示原因时是引起并列分句表示一种补充说明的理由，只可置于另一分句后；such as 比如，for example 举例说明。句意是看了你的广告之后，我决定买这款表，因为它能在任何条件下工作，比如在水中，和在很热的环境下。考点：考查连词。点评：此题主要是考查since 和for 的区别，such as 和for example的区别，理解它们的具体用法加以辨析，根据句意选择。