机仓通风设备()予以关闭。
A、应能从机舱外易达处
B、不能从机舱外
C、只能从机舱内
D、应能在机仓外任何处
参考答案:A
In the past, women were ______ and they often couldn’t get a good job.
A.looked down upon
B.looked forward to
C.looked on as
D.looked into
使心肌耗氧增加的因素有很多,除外()
A.心率加快
B.心肌收缩性增加
C.心室壁张力增强
D.前后负荷增加
E.使用镇静剂