单选题
To overcome the difficulty they were faced with, several companies ______ to form a big one.
A、
linked
B、
united
C、
joined
D、
connected
【正确答案】
B
【答案解析】
[考点] 近义词辨析
[解析] link“连接，联系”；unite“联合，合并，混合”；join“参加，结合，加入”；connect“连接”。
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