高血压饮食禁忌食品是()。
A.腌制品、浓茶、咖啡
B.牛奶、鱼、虾
C.豆制品
D.芹菜、胡萝卜
E.银耳、木耳
参考答案:A
Why is Venice san sinking
A.Because people only stop using underground water for industries on the mainland.
B.Because people still make use of the underground water for all purposes.
C.Because the use of groundwater far industries on the mainland has been stopped.
D.Because people do not use the underground water any more.
隧道喷射混凝土在稳定岩体中可先开挖后支护,支护结构距开挖面不宣大于()m。
A.2
B.3
C.4
D.5