(单选题)4: 最常见的子宫肌瘤是() A: 子宫颈肌瘤 B: 肌壁间肌瘤 C: 浆膜下肌瘤 D: 粘膜下肌瘤 ...
(单选题)23: The professor could hardly find sufficient grounds ________ his arguments in favour of the new theory. A: to be based on B: to base on C: which to base on D: on which to base ...
(单选题)5: Although Anne is happy with her success she wonders ________ will happen to her private life. A: that B: what C: it D: this ...
(单选题)24: She ought to stop work; she has a headache because she ________ too long. A: has been reading B: had read C: is reading D: read ...
(单选题)18: The early pioneers had to ________ many hardships to settle on the new land. A: go along with B: go back on C: go through D: go into ...
(单选题)12: In a sudden ________ of anger, the man tore up everything within reach. A: attack B: burst C: split D: blast ...
(单选题)6: There are signs ________ restaurants are becoming more popular with families. A: that B: which C: in which D: whose ...
(判断题)25: 地址总线用于传送单片机送出的地址信号() A: 错误 B: 正确 ...
(单选题)13: 在MCS-51中,需要外加电路实现中断撤除的是() A: 电平方式的外部中断 B: 定时中断 C: 外部串行中断 D: 脉冲方式的外部中断 ...
(单选题)1: 单片机的发展大致可分为()个阶段 A: 一 B: 二 C: 三 D: 四 ...