The solar cell can _____ the energy of sunlight into electric energy.
Do you know the _______ temperature for the growth of plants?
_____________ work has to be done before the plant goes into operation.
In deciding whether to add or delete a product, the salary of the plant manager is an ________. Assume the plant manager supervised the production of several products.
The cost of electricity is likely to be seriously ________ by the rise in gas prices.
Some of the most efficient refrigerators_________ 70 percent less electricity than traditional models.
Electric goods fall ______the scope of our business activities.
They are going to have the serviceman ____ an electric fan in the office tomorrow.
When the salt is inside vacuoles it cannot interfere _____ the plant's nomal biochemical activity.
Every teacher _______to plant a tree in the school.
The experiment shows that the infested plant helps its neighbors by______.
This plant is found in the ______() parts of the country.
There is an electric fire. Get the ________ extinguisher.
The ______ blanket can make you feel very warm while sleeping. (electricity)
.It's the best time to plant trees ____ spring.
Plastics are the best insulator of electricity, rubber______it closely.
We learn from the text that corals depend on plants for______.
The most common is the “Yellow Belt”, by planting lots of trees and other green plants, we can create it across the country and provide a home for many wild life. _______________
__________the end of last year they had planted 4,000 trees.
According to the passage, the first full-scale giant recycling plants will ______.A.be bui
It is well known tht Toms Edison ______ the electric lmp.discoveredB.foundC.developedIt is well known tht Toms Edison ______ the electric lmp.discovered B.found C.developed D.invented
The electric shaver______before it can be used.
The medicine _____ natural plants.
In the west of China, people plant rows of trees to prevent the wind _______ the earth away.