最容易累及中轴关节的疾病是（）。
A．系统性红斑狼疮
B．类风湿关节炎
C．干燥综合征
D．强直性脊柱炎
E．多发性肌炎
参考答案：D
The bridge enables people to get to the island in less than an hour. The underlined part means "_ " [ ]
A. makes it safe for
B. makes it possible for
C. makes it necessary for
D. makes it enjoyable for
WK-10型行走机构转向是靠（）完成。
