皮皮学，免费搜题
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【单选题】
锌粉与酸式亚硫酸钠反应生成A.
Na 2 S 2 O 4
B.
Na 2 S 2 O 3
C.
Na 2 SO 3
D.
Na 2 SO 4
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皮皮学刷刷变学霸
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【简答题】环甲正中韧带
【简答题】环甲正中韧带
【简答题】环甲正中韧带
【单选题】Oil prices have risen by 32 percent since the start of the year, _______ a record US$57.65 a barrel on April 4. [ ]
A.
reaching
B.
reached
C.
to reach
D.
reaches
【简答题】Oil prices have risen by 32 percent since the start of the year, ______ a record US $57.65 a barrel on April 4. A. have reached B. reaching C. to reach D. to be reaching
【简答题】环甲正中韧带
【简答题】环甲正中韧带
【单选题】Oil prices have risen by 32 percent since the start of the year，________ a record US $57.65 a barrel on April 4.
A.
have reached
B.
reaching
C.
to reach
D.
to be reaching
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