The wealth of a country should be measured ________ the health and happiness of its people as well as the material goods it can produce.
B
暂无解析
简述先兆流产的处理原则。
名词解释：口周苍白圈
构成领导者非权力性影响力的因素是（）
羊膜镜检查时观察到羊水的正常颜色是（）
输卵管妊娠破裂前，妇科检查子宫颈有触痛。（）
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