专升本考试

【单选题】He was unable to make much progress, hard ______ he trieD、
A．unless
B．as
C．however
D．because
网考网参考答案：B
网考网解析：
hard as he tried“虽然他十分努力”，用倒装表示强调。因此选B。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>