— There is little water left in the bottle, ______?                                         
— No, we need to buy some more before we run out of it.

Mr. Simmons ________a medium build, and he has yellow hair.

（2015•威海）检验4个工件，其中超过标准质量的克数记作正数，不足标准质量的克数记作负数．从轻重的角度看，最接近标准的工件是（　　）