单选题：I was impressed ________ the efficiency of the work done in

题目内容：

I was impressed ________ the efficiency of the work done in the company. A．in
B．about
C．with
D．for

参考答案：

答案解析：

What did the handball player do when he was not allowed a ti

What did the handball player do when he was not allowed a time out to change his

分类：英语四级题型：单选题

皮肤黏膜出现发绀时，毛细血管血液还原血红蛋白至少超过（　　）A．75g/l B．50g/l C．100g/l D．45g/l E．30g/l

分类：英语四级题型：单选题

体温持续在39～40℃以上，数天或数周，24小时内波动范围<1℃，为A．稽留热 B．波状热 C．回归热 D．间歇热 E．弛张热

分类：英语四级题型：单选题

导致心源性休克最常见的病因是（　　）A．急性肺动脉栓塞 B．急性心肌梗死 C．扩张型心肌病 D．急性肺水肿 E．急性心脏压塞

分类：英语四级题型：单选题

患者，女，40岁，口渴，多饮，多尿2个月，尿量5 000～7 000ml/D，首先应做的检查是（　　）A．肾脏B超 B．肾功能 C．尿比重和尿渗透压 D．头颅C

分类：英语四级题型：单选题