The Top 3 Countries in Global Aquaculture Production in 2012a including the Japan。（ ）

The authors attitude towards aquaculture is _____<br/>. A: optimistic B: negative C: indifferent D: uncertain

The Top 3 Countries in Global Aquaculture Production in 2012a except the（ ）。 A: Japan B: Vietnam C: China D: India

_________ is usually mounted on the front of the engine and turns whenever the engine running. A: water pump B: pesticide C: aquaculture D: cultivate