题目内容
(请给出正确答案)
[单选题]
_______ chocolate cake we had last night was delicious.
A./
B.the
C.a
D.an
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A./
B.the
C.a
D.an
Mary was looking for a shop___________she could buy some chocolate
A.which
B.that
C.where
D.Who
A.NaOH>Ca(OH)2>Ba(OH)2>Be(OH)2
B.NaOH>Be(OH)2>Ba(OH)2>Ca(OH)2
C.NaOH>Ba(OH)2>Be(OH)2>Ca(OH)2
D.NaOH>Ba(OH)2>Ca(OH)2>Be(OH)2
A.90,Ca(OH)2饱和溶液
B.95,Ca(OH)2溶液
C.95,Ca(OH)2饱和溶液
D.90,Ca(OH)2溶液