【简答题】计算机联锁系统应具有对室外联锁设备的()功能。
【单选题】男,67岁。20分钟前呕咖啡色液1次,量约300ml,伴上腹不适。否认肝脏病史。1个月来口服阿司匹林。查体:P84次/分,B.Pl30/70mmHg。腹软,剑突下轻压痛,肝脾肋下未触及。最重要的处理措施是
【单选题】男,67岁。20分钟前呕咖啡色液1次,量约300ml,伴上腹不适。否认肝脏病史。1个月来口服阿司匹林。查体:P84次/分,BP130/70mmHg。腹软,剑突下轻压痛,肝脾肋下未触及。最重要的处理措施是
【单选题】Which of the following conclusions can't be drawn from the passage?
A.
The U. S. Postal Service had less than 1,100 branches in California a few decades before.
B.
The profit of the Bank of America has been reducing since the 1980s.
C.
The prospect of the Bank of America is not quite promising.
D.
Moral problem is also a factor that leads to the decline of the Bank of America.
【单选题】Which of the following conclusions can NOT be drawn from the passage?
A.
The U.S. Postal Service had lass than 1,100 branches in California a few decades before.
B.
The profit of the Bank of America has been reducing since the 1980s.
C.
The prospect of the Bank of America is not quite promising.
D.
Moral problem is also a factor that leads to the decline of the Bank of America.
【单选题】某些藻类植物并非在所有的水环境中都能生长得很好,有一种水藻只有当周围的水流速度很慢时才能长得茂盛。然而,有人发现在一些地区,旱季过后,即使河水的水流速度很慢,也很少见到这种水藻。 以下哪项如果为真。可以作为上述现象的解释?
A.
除旱季外,水藻在有大坝的河,比其他河长得茂盛