托福考试

【单选题】The production and sale of cosmetics in the U.S. was virtually unregulated--------the food, drug, and cosmetic art of 1938
A、and until the pass of
B．and until passing
C．until the passage of
D．until passed

网考网参考答案：C
网考网解析：
根据句子形式排除A,B的and until.在根据until后面是名词形式排除D,选C. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>