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【单选题】
龋齿缺损的治疗方法是A.
修复性治疗
B.
自行修复
C.
药物涂擦
D.
离子导入
E.
再矿化疗法
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举一反三
【单选题】酒精在1标准大气压下的沸点是78℃。如果在 1标准大气压时，酒精的温度是78℃，则下列说法正确的是 ( )
A.
酒精沸腾
B.
酒精不沸腾
C.
酒精继续吸热，则能沸腾
D.
以上说法都不正确
【单选题】以下程序段执行结果是(57)。 Int s=0 i=1； Do {s+=i++；} While（i＜=10）； Consol
A.
wrfteline（“sum={0}”，sum）
B.
Sum=54
C.
sum=l
D.
sum=55
E.
sum=56
【单选题】以下程序的执行结果是 ______。 #include＜iostream.h＞ class Sample { int x; public： Sample(){}; Sample(int a){x=a;} Sample(Sample &a){x=a．x+1;} void disp(){cout＜＜'x='＜＜x＜＜end1；} } void main() { Sample s1(2)，s2(s1);...
A.
x=2
B.
x=3
C.
x不确定
D.
x=0
【单选题】I didn't see your sister at the meeting. If she _____, she would have met my brother. [ ]
A.
has come
B.
did come
C.
came
D.
had come
【单选题】以下程序执行结果是( ) void main() {int i=0,s=0; do{ if(i%2){i++;continue;} i++;s+=i; }while(i<7); printf("%d\n",s); }
A.
16
B.
12
C.
28
D.
21
【单选题】I didn't see your sister at the meeting. If she ______, she would have met my father. [ ]
A.
has come
B.
did come
C.
come
D.
had come
【单选题】I didn’t see your sister at the meeting. If she __________, she would have met my brother.
A.
has come
B.
did come
C.
come
D.
had come
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