Sea water is not directly used as a coolant for engines because of its （）.
B
举一反三
- He saw the plane crash into the sea when its engines ______.
- For wildlife enthusiasts the journey is ________ because the region is known for its sea birds.
- The Dead Sea is on the border between _______. It is _______ meters below sea level. That is ______ on Earth. The Dead Sea is the _______ large body of water in the world. The area around the Dead Sea has ancient places that _______. _______ in the Dead Sea are used for health treatments. ______ brings many visitors to the area.
- Though sea water is the best mode of fighting fire, the main emergency fire fighting system can only be used on fires of ________.
- Which of the following will be the function of lubricating oil used in marine engines?（）
内容
- 0
Actually the water in Aral Sea isn’t salt.
- 1
According to the first two paragraphs,________. A: the use of water is a completely new concept B: the sea has long been used as a way of power C: water is a source of energy far more economical than any other energies D: water, if properly handled, may present a promising solution to energy crisis
- 2
This island of Kahoolawe has been selected because ______. A: it is without fresh water B: of its rugged beauty C: it is presently uninhabited D: of the presence of ducks
- 3
These engines ______ by hand, now they ______ by electricity. A: used to be started; are started B: used to start; are started C: used to be started; start D: used to start; start
- 4
You have your water glass directly your knife.