利用B型超声测量判断胎儿宫内发育迟缓,下述哪项是不正确的:
A.胎头双顶径
B.胎儿股骨长度
C.腹围、胸围、头围
D.羊水量与胎盘成熟度
E.腹围/胸围
参考答案:E
— Would you like to go travelling with me to New York, Benjamin?
— Sorry, I’m busy, for the final examination is coming. So I ___ hard throughout the next several weeks.[ ]
A. have worked
B. have been working
C. work
D. will be working
企业技术改造的核心是()。
A.表层技术改造
B.内层技术改造
C.中层技术改造
D.深层技术改造