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【单选题】
兴趣能促使幼儿的( )的形成。A.
动力定型
B.
优势兴奋原则
C.
镶嵌式（动静交替）原则
D.
非条件反射
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皮皮学刷刷变学霸
举一反三
【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
B.
需1.92 g氢氧化钠固体
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】Large-scale hydroelectric power stations have been playing a more and more important part in supplying great quantities of electricity______today.
A.
consuming
B.
consumed
C.
consumes
D.
to be consumed
【单选题】胎盘剥离征象,下列哪项错误
A.
子宫体变硬呈球形
B.
子宫底高达脐上
C.
阴道流出大量血液
D.
阴道口外露的一段脐带自行延长
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】How is the flow rate of a hydroelectric power station quantified?
A.
The depth of the water.
B.
Volume over time.
C.
Speed over time.
D.
The width of the water.
【单选题】胎盘剥离征象,下列哪项错误
A.
子宫体变硬呈球形
B.
子宫底高达脐上
C.
阴道流出少量血液
D.
阴道口外露的一段脐带自行延长
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?
A.
6%.
B.
9%.
C.
15%.
D.
60%.
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