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【单选题】
能够指示血液样本中 pH 值大小的电极是（ ）A.
铂电极
B.
玻璃电极
C.
银-氯化银电极
D.
甘汞电极
E.
以上都不是
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【简答题】The poor mother complained that____________________(这么冷的天气孩子的衣服不够穿)．
【单选题】--- L inda, w h y a r e y ou c r y i n g ? --- I’m reading a story. The poor mother died, _________ four homeless children.
A.
left
B.
to leave
C.
leaves
D.
leaving
【单选题】to caring for the poor，Mother Teresa is greatly respected throughout the wold·A．DevotingB．Being d
A.
25． to caring for the poor，Mother Teresa is greatly respected throughout the wold· A．Devoting
B.
Being devoted
C.
Having devoted
D.
Devoted
【单选题】The poor mother ______ four children with great bravery.
A.
brought out
B.
brought up
C.
brought on
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