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单选题
When checking the liquid level in a tank, you should position yourself （）.
A
on the windward side of the opening
B
on the leeward side of the opening
C
at a right angle to the wind direction
D
so that the obstruction of your body will protect you from the fumes
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Call the owner，operator，or terminal supervisorB
Unplug the deck scuppersC
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单选题A rectangular fish tank has a base 2 feet wide and 3 feet long. When the tank is partially filled with water, a solid cube with an edge length of 1 foot is placed in the tank. If no overflow of water from the tank is assumed, by how many inches will the level of the water in the tank rise when the cube becomes completely submerged?A
1/6B
1/2C
2D
3E
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