X射线机空间分辨力的英文是spatial resolution。
【C2】
A. trouble
B. sorrow
C. danger
D. anger
The underlined word "jeopardize" in Paragraph 7 probably means______.
A. threat
B. increase
C. improve
D. change
What would be the best title for the passage？
A. How to Cut down Gadgets" Energy Consumption.
B. Consumer Electronics Are Increasing Quickly.
C. New Electronic Gadgets Can be a Threat to the Environment.
D. Greenhouse Gas Emissions from Households" Electronic Gadgets.
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