【判断题】具有 d 0 、 d 10 结构的配离子都没颜色,因为不能产生 d - d 跃迁。
【单选题】女性,15岁,转移性右下腹痛1小时,诊断为阑尾炎,手术切除阑尾,可见阑尾表面有脓性渗出物,组织学检查阑尾全层有大量中性粒细胞浸润,此炎症属于下列哪种性质的炎症
【单选题】气道梗塞的原因不包括()
C.
意识丧失的患者因肌肉松弛使舌根下坠而阻塞气道
【单选题】患者,男性,22岁。转移性右下腹痛8小时,右下腹有固定的压痛点,查体:体温39.1°C,脉搏113次/分,血压120/85mmHg;右下腹压痛、反跳痛、肌紧张、肠鸣音减弱;腰大肌试验阳性。实验室检查:WBC 12.5X109/L,中性粒细胞比例0.82。临床诊断为急性阑尾炎。根据该病人的临床表现,下列哪种情况最不可能
【单选题】患者男性,22岁,转移性右下腹痛8h,右下腹有固定的压痛点,临床诊断为急性阑尾炎,准备手术治疗 ,根据该病人的临床表现,下列哪种情况最不可能
【单选题】The scuppers had been plugged as required at the time an oil spill occurs on deck. After shutting down the transfer, the engine room should first be informed and then______.
A.
rig a fire hose and call for water on deck
B.
spread an absorbent material, such as sawdust
C.
remove the plugs from the scuppers
D.
sound the general alarm
【单选题】The scuppers should be plugged ().
A.
only if fixed containment is not used
B.
only if portable containment is not used
C.
only if fixed containment drains are open
D.
whenever the vessel is being bunkered
【单选题】A precaution you should take before bunkering is to ______
B.
plug the sounding pipes
D.
close the lids on the vents
【单选题】When loading bulk liquid cargo,what is the first action you should take if a cargo valve jammed open?
A.
Call the owner,operator,or terminal supervisor
B.
Unplug the deck scuppers
C.
Order the dock man to shut down
D.
Run out the vessel's or terminal's fire hose