The first mobile phones were heavy and ________ to use, but nowadays they are much easier to handle. ( 章节：1 难度：3)_做题室

单项选择题The first mobile phones were heavy and ________ to use, but nowadays they are much easier to handle. ( 章节：1 难度：3): A、immense; B、clumsy; C、substantial; D、advisable

正确答案：B
答案解析：
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