第14题: [单项选择]The concern (has been) that the embryo bank (might be) exploited (by unscrupulous), or that conception might precede birth by nine or even ninety years, (rather than) by nine months. A. has been B. might be C. by unscrupulous D. rather than 参考答案:C
第15题: [单项选择]下列具吸水能力的矿物药为 A. 云母 B. 软滑石 C. 方解石 D. 石英 E. 玛瑙 参考答案:B