【判断题】维生素C能够有效抑制肉品在烟熏过程中产生亚硝胺。( )
【单选题】Which is NOT the advantage of the nuclear stations?
A.
The nuclear stations are safer than the coal-fired stations.
B.
The cost of building the nuclear stations is more than that of the coal-fired stations.
C.
The cheaper running of the nuclear stations can offset its great construction.
D.
The nuclear stations are much cleaner than the conventional ones.
【单选题】Taxis outside hotels are usually safer,but more_______ for the day hires,which charge more than the passing ones.
【单选题】输液时液体滴入不畅,注射部位肿胀、疼痛,挤压输液管有回血其原因是
【单选题】Which of the following statements is NOT true?
A.
Wood-bunting stoves are safer and more efficient than they used to be.
B.
No factories exist for the purpose of producing dirty wood chips.
C.
Both catalytic combustors and wood agitators save money in the long run.
D.
Wood-burning stoves with catalytic combustors cost between $ 100 and $ 200.