妇女的主要生理特点是
A．经、带、胎、产
B．经、孕、产、乳
C．经、孕、胎、产
D．经、孕、胎、乳
E．经、带、产、乳
参考答案：B
Great changes have taken place in that school, it is no longer ________ it was 20 years ago, ________ it was so poorly equipped.
A．what; when
B．that; which
C．what; which
D．which; that
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