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When administering injections, it is important to prepare injections only from preparations designated for parenteral use.

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4. Physicians often give specific instructions about when to administer a medication, so nurses should administer the medication at right time.

目前世界养羊业已经由毛用羊生产为主转向以肉毛兼用。

A. 对
B. 错

目前,我国羊的放牧方式可分为()、()、()和()四种。

目前我国养羊区域大致分为()、()、()。

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