下载APP
举一反三
【单选题】New Technique Promises Earlier Cancer Detection A new technique could revolutionize the early detection of cancer, giving sufferers a greater chance of beating the disease, American scientists said. R...
A.
before
B.
after
C.
although
D.
near
【单选题】下列是一组有规律的图案，第1个图案由4个基础图形组成，第2个图案由7个基础图形组成，第3个图形由10个基础图形组成，第5个图形中基础图形的个数为（ ）
A.
13
B.
14
C.
15
D.
16