2. 外语
  3. The methods are tried and true, we used them for years and they have always worked for us.

The methods are tried and true, we used them for years and they have always worked for us.

admin2010-01-11  72
问题 The methods are tried and true, we used them for years and they have always worked for us.
选项 A、这些方法的的确确地被试过，我们已经采用这些方法好几年了。
B、这些方法经过实验，证明可靠，我们已使用这些方法多年了。
C、这些方法试过，而且不太真实可信，虽然我们已经采用这些方法好几年了。
D、这些方法我们只采用了一年，因此，我们不能证明这些方法是可靠和可信的。
答案B
解析 be tried and true：经过实验证明可靠
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