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【多选题】
盐酸普鲁卡因具有下列性质：A.
具有芳伯氨基
B.
易溶于水
C.
可发生重氮化 - 偶合反应
D.
具有酯键可水解
E.
具有紫外吸收光谱特征
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举一反三
【单选题】He is wearing sunglasses to ____ his eyes from the strong sunlight .
A.
prevent
B.
protect
C.
stop
D.
hold
【单选题】— What was Jim wearing at the party? — Nothing ________. He was in his usual shirt and jeans.
A.
special
B.
simple
C.
important
D.
interesting
【单选题】He is wearing sunglasses to __________ his eyes from the strong sunlight.
A.
protect
B.
prevent
C.
save
D.
help
【单选题】He is wearing sunglasses to _______ his eyes from the strong sunlight .
A.
protect
B.
hold
C.
stop
D.
prevent
【单选题】He is wearing sunglasses to protect his eyes ___ the strong sunlight.
A.
by
B.
from
C.
to
D.
in
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