题目内容

Many oil companies are now making alternative energy ----- in an effort to remain competitive in future energy markets.（）

A. payments
B. contributions
C. donations
D. investments

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The newspaper identified the journalist ----- wrote the anonymous editorial predicting a stock market crash.（）

A. which
B. whose
C. who
D. whom

佝偻病初期患儿的临床表现是（）

A. 颅骨软化
B. 下肢畸形
C. 有郝氏沟
D. 出现枕秃
E. 出现枕秃

Attempt to balance the budget were so successful that analysts projecting a ----- of $2 million over four years.（）

A. price
B. surplus
C. check
D. penalty

育肥猪，3月龄，口、鼻流白色泡沫，颈部发红肿胀，张口呼吸，常作犬坐姿势，急性死亡。剖检见颈部皮下呈胶冻状，肺脏水肿、出血.预防该病的措施是（）

A. 疫苗免疫
B. 使用抗生素
C. 使用抗血清
D. 疫苗免疫
E. 禁猫