用一个开关控制办公室里的两盏灯，最合理的电路图是()
What did Cameron say about chocolate oranges at supermarket checkouts？
A. They fueled a lot of controversy.
B. They made more British people obese.
C. They attracted a lot of smokers.
D. They had certain ingredients missing.
What has the UK government agreed to do concerning tobacco packaging？
A. Pass a law to standardise cigarette packaging.
B. Rid cigarette cartons of all advertisements.
C. Subsidise companies to adopt plain packaging.
D. Reclassify cigarettes according to packaging.
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