【单选题】用氢氧化钠固体配制480mL 0.1mol/L NaOH溶液时,下列有关说法错误的是( )
A.
用到的玻璃仪器有:玻璃棒、胶头滴管、容量瓶、量筒、烧杯
C.
没有等溶液冷却就转移,或定容时俯视,均导致所配溶液浓度偏高
D.
洗净的容量瓶不须干燥后才能用,但使用前须检漏
【单选题】胎盘剥离征象,下列哪项错误?
D.
用手掌尺侧按压耻骨联合上方,宫体上升脐带不再回缩。
【单选题】Large-scale hydroelectric power stations have been playing a more and more important part in supplying great quantities of electricity______today.
【单选题】胎盘剥离征象,下列哪项错误
E.
用手掌尺侧按压耻骨联合上方,宫体上升脐带回缩
【单选题】一老年妇女,自诉阴道口有一肿物脱出4年。检查子宫颈已脱至阴道口外,子宫体在阴道内。该病人患子宫脱垂,其程度是( )
【单选题】胎盘剥离征象,下列哪项错误
E.
用手掌尺侧按压耻骨联合上方,宫体上升脐带回缩
【单选题】Which statement can be inferred from the news?
A.
The geothermal and hydroelectric power can replace the petroleum.
B.
By the year 2020, natural gas production will be increased even more.
C.
Fusion power is the last kind of energy human have found.
D.
There could be several means to solve the energy shortage crisis.
【单选题】What proportion of the world's electricity supply is provided by hydroelectric power?