[单项选择]炼钢工人补充水分的较好形式是（）.
A. 白开水
B. 菜汤、肉汤
C. 稀饭
D. 纯净水
E. 高渗饮料

The whale is a warm-blooded, air-breathing animal, giving birth to its young alive, sucking them—and, like all mammals, originated on land. There are many (1) of this. Its front flippers (鳍状肢), used for steering and stability, are traces of feet.
Immense strength is (2) into the great body of the big whales, and in fact most of a whale’s body is one gigantic muscle. The blue whale’s pulling strength has been estimated (3) 400 horsepower. One specimen was reported to have towed (拖) a whaling vessel for seven hours at the (4) of eight knots (节).An angry whale will (5) a ship. A famous example of this was the fate of whaler Essex, (6) was sunk off the coast of South America early in the last century. More recently, steel ships have (7) their plates buckled (使弯曲) in the same way. Sperm whales (抹香鲸) wer
A. set
B. become
C. remain
D. rest

The earliest controversies about the relationship between photography and art centered on whether photographer’s fidelity to appearances and dependence on a machine allowed it to be a fine art (1) distinctive from merely a practical art. Throughout the nineteenth century, the defense of photography was identical with the (2) to establish it as a fine art. (3) the charge that photographers was a soulless mechanical duplication of (4) , photographers (5) that it was instead a privileged (6) of seeing, a revolt against commonplace vision, and (7) worthy an art than painting.
Ironically, (8) photography is securely established as a fine art, many photographers find it pretentious or (9) to label it as such. Serious photographers are no longer willing to (10) whether photography is not involved with art, (11) to proclaim that their own work is not involved with it. This shows the extent (12)
A. like
B. such as
C. excluding
D. aside from