一般情况下,加弹机开车时压空压力过低(指低于工艺设定压力允许偏差),会造成DTY丝饼网络度()。
A、不变
B、减少
C、增大
D、先减少后升高
参考答案:B
Not only _________ able to dance, but also _________ able to sing many English songs.
A.he was; he was
B.was he; was he
C.was he; he was
D.he was; was he
超声检查输尿管时,应该在排大便后,并憋尿充盈膀胱。其目的不是()。
A.减少肠道气体和粪便对输尿管的干扰
B.提高第二段输尿管显示效果
C.推开盆腔内的肠管
D.使输尿管充盈
E.提高第三段输尿管显示效果