问题
单项选择题
下列有关环丙沙星的描述中错误的是
A．对G-菌抗菌作用强
B．对G+菌抗菌作用较青霉素G弱
C．对绿脓杆菌、厌氧菌抗菌作用较强
D．可用于呼吸道、泌 * * 、皮肤软组织感染
E．禁用于孕妇、哺乳期妇女和儿童
答案
参考答案：B
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下列有关环丙沙星的描述中错误的是
A．对G-菌抗菌作用强
B．对G+菌抗菌作用较青霉素G弱
C．对绿脓杆菌、厌氧菌抗菌作用较强
D．可用于呼吸道、泌 * * 、皮肤软组织感染
E．禁用于孕妇、哺乳期妇女和儿童
参考答案：B
Leonardo may have been the greatest genius(天才) have ever known. He lived in Italy around the year 1500,but many of his inventions seem modern to us today. For example, one of his notebooks has drawings of a helicopter. Of course, he couldn’t a helicopter with the things he had. But scientists say his idea would have worked. But Leonardot an inventor. He was one of the greatest artists of his day. By the time he was twenty years old, he was called a master(大师）painter, and as he got older he became more famous. Sometimes he drew a hand ten different way she was ready to paint. Many of Leonardo’s wonderful paintings are still with today. You may know one of his most famous works the woman known as the Mona Lisa.
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