当中小企业板上市公司股票连续()个交易日,每日收盘价均低于每股面值时,深圳证券交易所对其股票交易实行退市风险警示。
A. 40
B. 30
C. 20
D. 10
光源的光谱能量分布影响其( )。
A. 色温
B. 相关色温
C. 显色性
D. 显色性和色温
下面程序段的输出结果是( )。 public class Test public static void main (String[] args) int j=2,i=5; while (j<i--) j++; System.out.println(j);
A. 2
B. 3
C. 4
D. 5
I wish I()in Hawaii longer last week, but I had to come back and go to work.
A. had stayed
B. might have stayed
C. stayed
D. have stayed