The airborne concentrations of substances (such as H2S) under which nearly all workers may be repeatedly exposed without adverse effects are called（）.
When two AC generators are being paralleled, the breaker should be closed with the synchroscope pointer mating in the （）
When loading a container vessel，the operation is basically that of vertical loading. The important factors to be considered when loading containers are port of discharge，（）.
When workers are organized in trade unions, employers find it hard to lay them（）
The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind（）.
When you are transferring fuel oil to the setting tanks, precautions to be observed should include （）
The Rules state that certain factors are to be taken into account when determining safe speed. One of the factors is the（）.
When the machinery spaces are in the periodic unmanned condition, shall be immediately available and on call to attend the machinery space（）.
When the vessel shafting are installed, the slightly inclined of the shaft line should be rectified by（）
All of the following are attributes that can be specified when creating a logical volume EXCEPT:（）
Which three of the following are organizational objectives that should be addressed when developing a new VLAN implementation plan？ （）
When gateways are registering with a gatekeeper， the gatekeeper can be（）.
Oil companies in the U.S. are already beginning to feel the pressure. Refinery workers and petroleum-equipment-manufacturing employees are being _______.
When you are demonstrating comparative advantages, the items you are comparing need to be _________equivalents
What should be done first when there are no available times for the guest to make a reservation:
What kind of elements should be included when we are designing the itinerary?
The _____ should not be overstated when the two nations are on the verge of conflict.
The author is convinced that when dealing with human beings, animals are _________.
Please be careful when you are drinking coffee in case you ________ the new carpet.
How old will Joma be when the 2008 Olympic Games are held.'？
When loading a container vessel，the operation is basically that of vertical loading．The important factors to be considered when loading containers are port of discharge，______．
Degree of the worker's contribution is greater when_____.
The workers are unlikely to be______by the factory because of the support of the Trade Union.
When you drive through the Redwood Forests in California, you will be trees that are over 100 years old（）
