测定细菌、放线菌大小一般以()单位,而测定病毒的大小则以()为单位。
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A seaman has a small,gaping laceration of the arm that is not bleeding excessively. What can be done as an alternative to suturing to close the wound?()
A. Wrap a tight bandage around the wound
B. Apply a compression bandage
C. Use temporary stitches of sail twine
D. Apply butterfly strips,then a sterile dressing
普通低碳钢热轧圆盘条不允许有压痕及局部的凸块。
A. 正确
B. 错误
提升机按缠绕机构的形式,可分为缠绕式和()两大类。
斜齿圆柱齿轮的模数有法向模数和端面模数两种,其中以端面模数为标准值。
A. 正确
B. 错误