【单选题】女性,30岁,已婚,停经3余月,早孕反应重,阴道反复少量流血约2月,妇检:宫颈轻度糜烂,紫蓝色,宫口略松,子宫中位,大约孕4月余大小,质软,双侧附件正常,为明确诊断应采用哪项辅助检查
【单选题】What do recent studies show about government-approved school lunch?
A.
It compares favorably with home-made lunch.
B.
It is unpopular among students.
C.
It is supported by most parents.
D.
It contains fewer calories and is less expensive.
【单选题】Recent studies show that employees who take vacation time and leave are than who do not.
【判断题】LiFeP04电池在充电时,正极中的锂离子通过聚合物隔膜向负极迁移
【简答题】一针式打印机采用7列×9行点阵打印字符,每行可打印132个字符,共有96种可打印字符,用带偶校验位的ASCII码表示。问:缓存地址计数器应有多少位?
【单选题】Recent studies show that _____.
A.
external rewards decrease intrinsic motivation
B.
decreases in intrinsic interest resulting from an external reward can be detected by statistical analysis
C.
verbal praise decreases intrinsic interest
D.
external rewards do not automatically decrease intrinsic interest
【简答题】计算题:图D-13为电源变压器,一次绕组为1000匝,接220V电压。它有两个二次绕组,一个电压为35V,接若干灯泡共消耗功率7W;另一个电压为12V,也接入若干灯泡共消耗功率5W。试问此时一次电流为多少?两个二次绕组的匝数各为多少?
【简答题】一针式打印机采用7列×9行点阵打印字符,每行可打印132个字符,共有96种可打印字符,用带偶校验位的ASCII码表示。问:列计数器应有多少位?
【简答题】阅读下面短文,然后用英语简洁回答文后所给的五个问题。 Recent studies show that many young people in the United States never finish high school.Some researchers say about fif to twenty percent of public school students do no...
【单选题】女性,30岁,已婚,停经3余月,早孕反应重,阴道反复少量流血约2月,妇检:宫颈轻度糜烂,紫蓝色,宫口略松,子宫中位,大约孕4月余大小,质软,双侧附件正常,应采用下列哪项处理