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【单选题】
已知 a b = c d = e f = 1 2 ，则 a-3c+2e 2b-6d+4f =（ ）A.
1 2
B.
1 3
C.
1 4
D.
1 5
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皮皮学刷刷变学霸
举一反三
【单选题】Electrical appliance such as toasters or hair dryers are designed to ______the ability of an electric current to heat a wire.
A.
take the risk of
B.
take advantage of
C.
take responsibility of
D.
make sense of
【多选题】关于图中所示疾病说法正确的是（）
A.
临床上较为少见
B.
多为单眼发病
C.
尽快经皮肤或结膜切开排脓
D.
常见致病菌为金黄色葡萄球菌或淋球菌
E.
多为细菌或病毒感染脓肿形成后
【单选题】Electrical appliance such as toasters or hair dryers are designed to ______ the ability of an electric current to heat a wire.
A.
take the risk of
B.
take advantage of
C.
take responsibility
D.
make sense of
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