停经50天,有早孕反应,3天前开始少量阴道流血,今早流血增多,并腹痛加剧,随时排出一块组织后流血减少;妇查:阴道内少量血液,宫口未开,子宫前位,稍大,双附件( - );今日查尿妊免( - ),其处理方案应首选:()
A. 立即清宫
B. 催产素注射
C. 观察无特殊处理
D. HCG测定
E. 大量抗生素消炎
查看答案
关于流产的临床表现哪项错误:()
A. 流产的主要症状是阴道流血和腹痛
B. 早期流产常先有阴道流血,后有腹痛
C. 晚期流产常先有腹痛,后有阴道流血
D. 妊娠8周前发生流产时,由于绒毛膜未发育成熟,易发生不全流产
E. 羊水检查发现胎儿染色体异常者,应立即终止妊娠
Comparing with an analog signal assuming a continuous range of values,a digital signal assumes discrete values, usually two permitted values.
A. 对
B. 错
The output of XOR gate is 1 if one input is 1 and the other is 1.
A. 对
B. 错
Computers are constructed of digital building blocks such as logic gates, Flip-Flops and counters.
A. 对
B. 错