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【单选题】
下列哪项与生物碱的性质不符A.
一般显碱性
B.
多数有旋光性
C.
能与生物碱试剂作用形成沉淀或产生颜色反应
D.
易溶于水
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【单选题】— Look! Our teacher has ________ tense expression on her face. — So she does. It seems that ________ news is true. [ ]
A.
a; /
B.
a; the
C.
the; /
D.
the; a
【单选题】—Look! Jane has ______ tense expression on her face. —So she does. It seems that ______ news is true.
A.
a ; /
B.
a ; the
C.
the; /
D.
the; a
【单选题】She was so angry that her face was ______of blood.
A.
dropped
B.
drained
C.
spilt
D.
dripped
【单选题】She always has a smile on her face. What makes her so ? [ ]
A.
happily
B.
happy
C.
sad
D.
unhappy
【简答题】He was __________ give her a blow to the face. [A] so angry that [B] such angry as to [C] such angry that [D] so angry as to
【单选题】There was a _________ look on her face so I repeated the question.
A.
puzzled
B.
puzzling
C.
puzzle
D.
puzzlement
【单选题】The teacher always ______ a smile on her face, so the students never feel_______. [ ]
A.
puts on; frightened
B.
wears; frightened
C.
puts on; frightening
D.
wears; frightening
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