首页/ 题库 / [单选题]生物安全实验室离心机的正确使用不包括( 的答案

生物安全实验室离心机的正确使用不包括(  )。

单选题
2021-07-17 20:33
A、应按照操作手册来操作离心机
B、离心管和盛放离心标本的容器最好为塑料制品,使用前应检查是否破损
C、最好使用带螺旋盖的离心管,离心管、离心桶、转子等牢固旋紧后才可作离心
D、不能将离心管装得过满,空离心管可用盐溶液来平衡
E、离心管、离心桶的装载、平衡、密封和打开必须在生物安全柜内进行,每次使用后,要用合适的清洁剂及消毒剂清除离心桶、转子和离心机腔的污染
查看答案

正确答案
D

试题解析

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

A cabinet or space containing the controls or valves for the fixed firefighting system must be().
A cabinet or space containing the controls or valves for the fixed firefighting system must be().
CASE OF DEATH OR SERIOUS INJURY TO A PERSON IN AN ACCIDENT OR SHIPPING DISASTER is().
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Damage to cargo caused by fumes or vapor from liquids,gases, or solids is known as().
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
()means any person by whom or in whose name or on whose behalf a contract of carriage of goods by sea has been concluded with a carrier,or any person by whom or in whose name or on whose behalf the goods are actually delivered to the carrier in relation to the contract of carriage of goods by sea.
If he is a common carrier,he is absolutely responsible to the owner of the goods carried ()any loss or damage to them unless caused by an Act of God or the Queen’s enemies,or the inherent vice in the goods themselves,or the negligence of the owner of the goods,or a general average sacrifice.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
Owners are to be responsible for loss of or damage to the goods or delay in delivery of the goods only in case the loss,damage or delay has been caused by the improper or negligent stowage of the goods.This means that().
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo,without the authorization or privity of the Shipowner or his agent,is().
广告位招租WX:84302438

免费的网站请分享给朋友吧