拔除扁根牙或多根牙时不能使用的是()
A.轮轴力
B.旋转力
C.摇动力
D.楔力
E.牵引力
参考答案:B
该图实线为锋线且正向西北方向移动,虚线范围内为雨区。下列关于该天气系统过境时天气状况的描述,正确的是 ( )
A.天气转晴
B.气温剧烈下降
C.连续性降水
D.狂风
The island is attractive in spring and autumn because of the pleasant weather in both seasons. [ ]
A. partly
B. merely
C. nearly
D. equally