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搜题
【单选题】
钙剂具有抗过敏作用是由于A.
阻断H1受体
B.
阻断H2受体
C.
阻断β受体
D.
增加毛细血管致密度、降低其通透性
E.
稳定肥大细胞膜，减少过敏介质释放
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举一反三
【单选题】Which of the following best describes the effect of Irving's personal qualities on his literary success?
A.
His personal qualities were entirely responsible for his literary success.
B.
His personal qualities were primarily responsible for his literary success.
C.
His personal qualities had some effects on his literary success.
D.
His personal qualities had no effects on his literary success.
【判断题】西周经过分封，天子名义拥有天下，诸侯有国，卿大夫有家，分封制下国家分属于各自拥有实权的受封者，天子、诸侯、卿大夫皆为有土之君，因此天下、国、家具有相对独立的地位。()
A.
正确
B.
错误
【单选题】关于汽车安全气囊的备用电源，下列说法中正确的是（）.
A.
在正常行驶时蓄电池属于备用电源
B.
当点火开关接通10S后，备用电源即完成储能工作
C.
在双气囊系统中只有一个点火引爆电源
D.
470微微法电解电容是备用电源
【单选题】下列（）不属于汽车检查“四漏”。
A.
检查汽车的进气系统、排气系统有无漏气现象
B.
机动车连续行驶距离不小于10km，停车5min后观察不得有明显渗漏油现象。
C.
检查发动机点火系统有无漏电现象
D.
水箱有无漏水现象
【单选题】He might do it, and so ______.
A.
might his best friend
B.
his best friend may
C.
will his best friend
D.
his best friend should
相关题目：
【判断题】西周经过分封，天子名义拥有天下，诸侯有国，卿大夫有家，分封制下国家分属于各自拥有实权的受封者，天子、诸侯、卿大夫皆为有土之君，因此天下、国、家具有相对独立的地位。()
A.
正确
B.
错误