[单选] Which of the general advantages listed does the electrical pyrometer have over the mechanical pyrometer?（）

追踪法，是指观察者事先确定1～2个幼儿作为观察对象，观察他们在游戏中的活动情况。 Bulk cargo refers to（）. cargo which occupies a large volume of space。 cargo which requires refrigeration。 cargo which is very dense。 homogeneous cargo not enclosed in a container。 客户经理单次可以给客户推荐的签约数是（）个。 5个。 6个。 8个。 10个。 If a vessel takes a sudden severe list or trim from an unknown cause，you should FIRST（）. determine the cause before taking countermeasures。 assume the shift is due to off-center loading。 counterflood on the side opposite the list or trim。 assume the cause is environmental force。 对族群客户进行产品组合推荐时，不可以推荐的产品是（） 基金。 保险产品。 信托产品。 得利宝理财产品。 Which of the general advantages listed does the electrical pyrometer have over the mechanical pyrometer?（）