A.水化熱高,凝結(jié)時(shí)間短的水泥 B.水化熱低,凝結(jié)時(shí)間短的水泥 C.水化熱高,凝結(jié)時(shí)間長(zhǎng)的水泥 D.水化熱低,凝結(jié)時(shí)間長(zhǎng)的水泥
A.260 B.280 C.300 D.320
A.2.7 B.2.3 C.1.5 D.3.0