[单项选择]The crime rate has continued to rise in American cities despite efforts on the part of both government and private citizens to curb ______ . A. them B. its C. him D. it
第16题: [单项选择]女,26岁。G1P0,31周妊娠。阴道少量出血,伴规律性腹痛3小时入院。查体:宫底高度30cm,LOA,胎心120次/分,宫缩20秒/5~7分。阴道检查:宫颈管消退70%,宫口尚未扩张。 不宜选用下列哪项处理措施 A. 镇静药 B. 卧床休息 C. B型超声检查胎儿大小 D. 选用α肾上腺素能受体兴奋药 E. 选用β肾上腺素能受体兴奋药 参考答案:D 答案解析:血管收缩的作用强大,皮肤黏膜、肾、肠系膜、肝、脑,外周阻力明显增高。不适用于早产延长孕周。