电缆人孔井的净空高度不应小于1.8m,其上部人孔的直径不应小于()m。
A、0.7
B、0.8
C、1.0
D、1.2
参考答案:A
()的生活并不是叫我们不要生活,而是要我们抱持一种自在、不执着的生活态度,如偈云:「犹如木人看花鸟,何妨万物假围绕。」
A restaurant orders 150 kg of pumpkins from the farmer’s market. The farmer fills the order with 23 pumpkins. The average mass of the first 20 pumpkins is 6.5 kg. What must be the minimum average mass of the remaining 3 pumpkins to fill the order ?()
A. 5.5 kg
B. 5.67 kg
C. 6.67 kg
D. 7 kg
E. 11.5 kg