安全带使用前必须一次()检查。
A.拉力;
B.强度;
C.内部;
D.外观。
参考答案:D
Many audiences listened to his speech very attentively from the very beginning to the end, my parents ___________.
A.included
B.containing
C.including
D.contained
下列情况能使肝脏生成酮体过多的是
A.肝功能增强B.肝中脂代谢紊乱C.肝功能减弱D.糖供应不足E.脂肪转运障碍