依沙吖啶引产适用于吸宫术流产适用于药物流产适用于钳刮术流产适用于
A.49天以前
B.10周内
C.10~14周
D.14~24周
E.14~28周
参考答案:D,B,A,C
They haven't decided ___ they will go for a drive on Sunday or not.
A.that
B.how
C.which
D.whether
下面关于数组定义语句不正确的是______。
A.inta[]= {1,2,3,4};
B.int[] a1, a2;
C.double[] d = new double [8];
D.float f[] = new {2.0f, 3.5f, 5.6f, 7.8f};