【单选题】He doesn't seem to be able to do it,______I thought he could.
【简答题】定密监督的方式主要包括()。 A.定密检查 B.法定定密责任人的监督 C.定密统计 D.定密核查
【单选题】He doesn't seem to be able to ______ any interest in his studies.
【单选题】有关A 1 型密堆积与A 3 型密堆积的说法中正确的是( )。
A.
A 1 型密堆积是最密堆积,A 3 型密堆积不是最密堆积
B.
两者都是最密堆积,其中A 3 型密堆积是一、三、五……各层球心重合,二、四、六……各层球心重合;A 1 型密堆积是四、五、六各层球心分别和一、二、三各层球心重合
C.
原子晶体一般都采用A 1 型密堆积或A 3 型密堆积
D.
只有金属晶体才可能采用A 1 型密堆积或A 3 型密堆积
【单选题】He doesn't seem to be very nice to her.( ) , he is pretty ugly.
【单选题】He doesn't seem to be able to do it, ______ I thought he could.